235491240 has 64 divisors (see below), whose sum is σ = 708624000. Its totient is φ = 62606592.

The previous prime is 235491229. The next prime is 235491251. The reversal of 235491240 is 42194532.

It is an interprime number because it is at equal distance from previous prime (235491229) and next prime (235491251).

It is a super-3 number, since 3×235491240³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 235491198 and 235491207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39069 + ... + 44691.

It is an arithmetic number, because the mean of its divisors is an integer number (11072250).

Almost surely, 2^235491240 is an apocalyptic number.

235491240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 235491240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354312000).

235491240 is an abundant number, since it is smaller than the sum of its proper divisors (473132760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

235491240 is a wasteful number, since it uses less digits than its factorization.

235491240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5986 (or 5982 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 235491240 is about 15345.7238343455. The cubic root of 235491240 is about 617.5302721914.

The spelling of 235491240 in words is "two hundred thirty-five million, four hundred ninety-one thousand, two hundred forty".