388770480 has 120 divisors (see below), whose sum is σ = 1492157472. Its totient is φ = 88860672.

The previous prime is 388770469. The next prime is 388770509. The reversal of 388770480 is 84077883.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×388770480² = 302284972238860800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33529 + ... + 43608.

Almost surely, 2^388770480 is an apocalyptic number.

388770480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

388770480 is an abundant number, since it is smaller than the sum of its proper divisors (1103386992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

388770480 is a wasteful number, since it uses less digits than its factorization.

388770480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77163 (or 77154 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 388770480 is about 19717.2635018148. The cubic root of 388770480 is about 729.8457671286.

The spelling of 388770480 in words is "three hundred eighty-eight million, seven hundred seventy thousand, four hundred eighty".