387442880 has 56 divisors (see below), whose sum is σ = 1006480080. Its totient is φ = 140887040.

The previous prime is 387442877. The next prime is 387442931. The reversal of 387442880 is 88244783.

It is a super-2 number, since 2×387442880² = 300223970525388800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51515 + ... + 58554.

Almost surely, 2^387442880 is an apocalyptic number.

It is an amenable number.

387442880 is an abundant number, since it is smaller than the sum of its proper divisors (619037200).

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

387442880 is a wasteful number, since it uses less digits than its factorization.

387442880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110097 (or 110087 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 44.

The square root of 387442880 is about 19683.5687821086. The cubic root of 387442880 is about 729.0140439350.

The spelling of 387442880 in words is "three hundred eighty-seven million, four hundred forty-two thousand, eight hundred eighty".