478338998 has 4 divisors (see below), whose sum is σ = 717508500. Its totient is φ = 239169498.

The previous prime is 478338989. The next prime is 478339031. The reversal of 478338998 is 899833874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 899833874 = 2 ⋅449916937.

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 as a sum of consecutive naturals, namely, 119584748 + ... + 119584751.

It is an arithmetic number, because the mean of its divisors is an integer number (179377125).

Almost surely, 2^478338998 is an apocalyptic number.

478338998 is a deficient number, since it is larger than the sum of its proper divisors (239169502).

478338998 is a wasteful number, since it uses less digits than its factorization.

478338998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239169501.

The product of its digits is 10450944, while the sum is 59.

The square root of 478338998 is about 21870.9624388137. The cubic root of 478338998 is about 782.0693451761.

The spelling of 478338998 in words is "four hundred seventy-eight million, three hundred thirty-eight thousand, nine hundred ninety-eight".