432457640 has 32 divisors (see below), whose sum is σ = 974302560. Its totient is φ = 172756800.

The previous prime is 432457633. The next prime is 432457643. The reversal of 432457640 is 46754234.

It is a super-2 number, since 2×432457640² = 374039220788739200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 432457640.

It is not an unprimeable number, because it can be changed into a prime (432457643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25775 + ... + 39105.

It is an arithmetic number, because the mean of its divisors is an integer number (30446955).

Almost surely, 2^432457640 is an apocalyptic number.

432457640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

432457640 is an abundant number, since it is smaller than the sum of its proper divisors (541844920).

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

432457640 is a wasteful number, since it uses less digits than its factorization.

432457640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14153 (or 14149 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 35.

The square root of 432457640 is about 20795.6158841233. The cubic root of 432457640 is about 756.2194756707.

The spelling of 432457640 in words is "four hundred thirty-two million, four hundred fifty-seven thousand, six hundred forty".