235456140 has 48 divisors (see below), whose sum is σ = 662725728. Its totient is φ = 62459904.

The previous prime is 235456127. The next prime is 235456141. The reversal of 235456140 is 41654532.

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 = 235456098 and 235456107.

It is not an unprimeable number, because it can be changed into a prime (235456141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1414 + ... + 21746.

It is an arithmetic number, because the mean of its divisors is an integer number (13806786).

Almost surely, 2^235456140 is an apocalyptic number.

235456140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235456140 is an abundant number, since it is smaller than the sum of its proper divisors (427269588).

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

235456140 is a wasteful number, since it uses less digits than its factorization.

235456140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20538 (or 20536 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 235456140 is about 15344.5801506591. The cubic root of 235456140 is about 617.4995896778.

The spelling of 235456140 in words is "two hundred thirty-five million, four hundred fifty-six thousand, one hundred forty".