381272800 has 36 divisors (see below), whose sum is σ = 930784176. Its totient is φ = 152508800.

The previous prime is 381272777. The next prime is 381272833. The reversal of 381272800 is 8272183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237496 + ... + 239095.

It is an arithmetic number, because the mean of its divisors is an integer number (25855116).

Almost surely, 2^381272800 is an apocalyptic number.

It is an amenable number.

381272800 is an abundant number, since it is smaller than the sum of its proper divisors (549511376).

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

381272800 is a wasteful number, since it uses less digits than its factorization.

381272800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476611 (or 476598 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 381272800 is about 19526.2080292104. The cubic root of 381272800 is about 725.1234351862.

The spelling of 381272800 in words is "three hundred eighty-one million, two hundred seventy-two thousand, eight hundred".