432040440 has 64 divisors (see below), whose sum is σ = 1395828000. Its totient is φ = 106348032.

The previous prime is 432040439. The next prime is 432040451. The reversal of 432040440 is 44040234.

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, 136915 + ... + 140034.

Almost surely, 2^432040440 is an apocalyptic number.

432040440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

432040440 is an abundant number, since it is smaller than the sum of its proper divisors (963787560).

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

432040440 is a wasteful number, since it uses less digits than its factorization.

432040440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276976 (or 276972 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 432040440 is about 20785.5825032641. The cubic root of 432040440 is about 755.9762177228.

Adding to 432040440 its reverse (44040234), we get a palindrome (476080674).

The spelling of 432040440 in words is "four hundred thirty-two million, forty thousand, four hundred forty".