480385138 has 4 divisors (see below), whose sum is σ = 720577710. Its totient is φ = 240192568.

The previous prime is 480385123. The next prime is 480385183. The reversal of 480385138 is 831583084.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 333902529 + 146482609 = 18273^2 + 12103^2 .

It is a super-2 number, since 2×480385138² = 461539761622558088, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 480385138.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120096283 + ... + 120096286.

Almost surely, 2^480385138 is an apocalyptic number.

480385138 is a deficient number, since it is larger than the sum of its proper divisors (240192572).

480385138 is a wasteful number, since it uses less digits than its factorization.

480385138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240192571.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 480385138 is about 21917.6900698956. The cubic root of 480385138 is about 783.1828839576.

The spelling of 480385138 in words is "four hundred eighty million, three hundred eighty-five thousand, one hundred thirty-eight".