478919998 has 8 divisors (see below), whose sum is σ = 718478640. Its totient is φ = 239427120.

The previous prime is 478919977. The next prime is 478919999. The reversal of 478919998 is 899919874.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478919999) 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, 10783 + ... + 32773.

It is an arithmetic number, because the mean of its divisors is an integer number (89809830).

Almost surely, 2^478919998 is an apocalyptic number.

478919998 is a deficient number, since it is larger than the sum of its proper divisors (239558642).

478919998 is a wasteful number, since it uses less digits than its factorization.

478919998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32882.

The product of its digits is 11757312, while the sum is 64.

The square root of 478919998 is about 21884.2408595775. The cubic root of 478919998 is about 782.3858560245.

The spelling of 478919998 in words is "four hundred seventy-eight million, nine hundred nineteen thousand, nine hundred ninety-eight".