478431049 has 4 divisors (see below), whose sum is σ = 478541440. Its totient is φ = 478320660.

The previous prime is 478431047. The next prime is 478431071. The reversal of 478431049 is 940134874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 478431049 - 2¹ = 478431047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478431047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48417 + ... + 57454.

It is an arithmetic number, because the mean of its divisors is an integer number (119635360).

Almost surely, 2^478431049 is an apocalyptic number.

It is an amenable number.

478431049 is a deficient number, since it is larger than the sum of its proper divisors (110391).

478431049 is a wasteful number, since it uses less digits than its factorization.

478431049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110390.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 478431049 is about 21873.0667488581. The cubic root of 478431049 is about 782.1195087965.

The spelling of 478431049 in words is "four hundred seventy-eight million, four hundred thirty-one thousand, forty-nine".