478915930 has 8 divisors (see below), whose sum is σ = 862048692. Its totient is φ = 191566368.

The previous prime is 478915909. The next prime is 478915937. The reversal of 478915930 is 39519874.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 442807849 + 36108081 = 21043^2 + 6009^2 .

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

It is not an unprimeable number, because it can be changed into a prime (478915937) 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, 23945787 + ... + 23945806.

Almost surely, 2^478915930 is an apocalyptic number.

478915930 is a deficient number, since it is larger than the sum of its proper divisors (383132762).

478915930 is a wasteful number, since it uses less digits than its factorization.

478915930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47891600.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 478915930 is about 21884.1479157860. The cubic root of 478915930 is about 782.3836407940.

The spelling of 478915930 in words is "four hundred seventy-eight million, nine hundred fifteen thousand, nine hundred thirty".