431045978 has 8 divisors (see below), whose sum is σ = 705348000. Its totient is φ = 195929980.

The previous prime is 431045939. The next prime is 431045983. The reversal of 431045978 is 879540134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9796478 + ... + 9796521.

It is an arithmetic number, because the mean of its divisors is an integer number (88168500).

Almost surely, 2^431045978 is an apocalyptic number.

431045978 is a deficient number, since it is larger than the sum of its proper divisors (274302022).

431045978 is a wasteful number, since it uses less digits than its factorization.

431045978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19593012.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 431045978 is about 20761.6468036618. The cubic root of 431045978 is about 755.3957418316.

The spelling of 431045978 in words is "four hundred thirty-one million, forty-five thousand, nine hundred seventy-eight".