381002880 has 64 divisors (see below), whose sum is σ = 1214452800. Its totient is φ = 101600256.

The previous prime is 381002879. The next prime is 381002893. The reversal of 381002880 is 88200183.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 97300 + ... + 101139.

It is an arithmetic number, because the mean of its divisors is an integer number (18975825).

Almost surely, 2^381002880 is an apocalyptic number.

381002880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

381002880 is an abundant number, since it is smaller than the sum of its proper divisors (833449920).

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

381002880 is a wasteful number, since it uses less digits than its factorization.

381002880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198461 (or 198449 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 381002880 is about 19519.2950692385. The cubic root of 381002880 is about 724.9522790627.

The spelling of 381002880 in words is "three hundred eighty-one million, two thousand, eight hundred eighty".