240534240 has 96 divisors (see below), whose sum is σ = 760578336. Its totient is φ = 63897600.

The previous prime is 240534233. The next prime is 240534257. The reversal of 240534240 is 42435042.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×240534240² = 115713441224755200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 240534240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149440 + ... + 151040.

It is an arithmetic number, because the mean of its divisors is an integer number (7922691).

Almost surely, 2^240534240 is an apocalyptic number.

240534240 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 240534240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380289168).

240534240 is an abundant number, since it is smaller than the sum of its proper divisors (520044096).

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

240534240 is a wasteful number, since it uses less digits than its factorization.

240534240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932 (or 1924 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 240534240 is about 15509.1663218885. The cubic root of 240534240 is about 621.9072727711.

Adding to 240534240 its reverse (42435042), we get a palindrome (282969282).

The spelling of 240534240 in words is "two hundred forty million, five hundred thirty-four thousand, two hundred forty".