240291432 has 24 divisors (see below), whose sum is σ = 650789490. Its totient is φ = 80097120.

The previous prime is 240291397. The next prime is 240291433. The reversal of 240291432 is 234192042.

240291432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 191933316 + 48358116 = 13854^2 + 6954^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×240291432² = 115479944585221248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 240291396 and 240291405.

It is not an unprimeable number, because it can be changed into a prime (240291433) 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 5 ways as a sum of consecutive naturals, for example, 1668619 + ... + 1668762.

Almost surely, 2^240291432 is an apocalyptic number.

It is an amenable number.

240291432 is an abundant number, since it is smaller than the sum of its proper divisors (410498058).

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

240291432 is a wasteful number, since it uses less digits than its factorization.

240291432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3337393 (or 3337386 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 240291432 is about 15501.3364585122. The cubic root of 240291432 is about 621.6979402729.

The spelling of 240291432 in words is "two hundred forty million, two hundred ninety-one thousand, four hundred thirty-two".