240331432 has 32 divisors (see below), whose sum is σ = 493387200. Its totient is φ = 108841600.

The previous prime is 240331423. The next prime is 240331433. The reversal of 240331432 is 234133042.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (240331433) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19869 + ... + 29587.

It is an arithmetic number, because the mean of its divisors is an integer number (15418350).

Almost surely, 2^240331432 is an apocalyptic number.

240331432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

240331432 is an abundant number, since it is smaller than the sum of its proper divisors (253055768).

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

240331432 is a wasteful number, since it uses less digits than its factorization.

240331432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10017 (or 10013 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 240331432 is about 15502.6266161577. The cubic root of 240331432 is about 621.7324352438.

Adding to 240331432 its reverse (234133042), we get a palindrome (474464474).

The spelling of 240331432 in words is "two hundred forty million, three hundred thirty-one thousand, four hundred thirty-two".