381139800420 has 96 divisors (see below), whose sum is σ = 1130189251968. Its totient is φ = 95639836672.

The previous prime is 381139800407. The next prime is 381139800473. The reversal of 381139800420 is 24008931183.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5583214 + ... + 5651066.

It is an arithmetic number, because the mean of its divisors is an integer number (11772804708).

Almost surely, 2^381139800420 is an apocalyptic number.

381139800420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

381139800420 is an abundant number, since it is smaller than the sum of its proper divisors (749049451548).

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

381139800420 is a wasteful number, since it uses less digits than its factorization.

381139800420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73389 (or 73387 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 381139800420 in words is "three hundred eighty-one billion, one hundred thirty-nine million, eight hundred thousand, four hundred twenty".