432978990 has 32 divisors (see below), whose sum is σ = 1074984480. Its totient is φ = 111479424.

The previous prime is 432978989. The next prime is 432979003. The reversal of 432978990 is 99879234.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247969 + ... + 249708.

It is an arithmetic number, because the mean of its divisors is an integer number (33593265).

Almost surely, 2^432978990 is an apocalyptic number.

432978990 is an abundant number, since it is smaller than the sum of its proper divisors (642005490).

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

432978990 is a wasteful number, since it uses less digits than its factorization.

432978990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497716.

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 432978990 is about 20808.1472024782. The cubic root of 432978990 is about 756.5232408349.

The spelling of 432978990 in words is "four hundred thirty-two million, nine hundred seventy-eight thousand, nine hundred ninety".