381365580 has 24 divisors (see below), whose sum is σ = 1067823792. Its totient is φ = 101697472.

The previous prime is 381365561. The next prime is 381365591. The reversal of 381365580 is 85563183.

381365580 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

381365580 is strictly pandigital in base 9.

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, 3177987 + ... + 3178106.

It is an arithmetic number, because the mean of its divisors is an integer number (44492658).

Almost surely, 2^381365580 is an apocalyptic number.

381365580 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

381365580 is an abundant number, since it is smaller than the sum of its proper divisors (686458212).

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

381365580 is a wasteful number, since it uses less digits than its factorization.

381365580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6356105 (or 6356103 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 381365580 is about 19528.5836660010. The cubic root of 381365580 is about 725.1822482775.

The spelling of 381365580 in words is "three hundred eighty-one million, three hundred sixty-five thousand, five hundred eighty".