381938802 has 32 divisors (see below), whose sum is σ = 873936000. Its totient is φ = 109008768.

The previous prime is 381938731. The next prime is 381938807. The reversal of 381938802 is 208839183.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (381938807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39724 + ... + 48392.

It is an arithmetic number, because the mean of its divisors is an integer number (27310500).

Almost surely, 2^381938802 is an apocalyptic number.

381938802 is an abundant number, since it is smaller than the sum of its proper divisors (491997198).

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

381938802 is a wasteful number, since it uses less digits than its factorization.

381938802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9730.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 381938802 is about 19543.2546419474. The cubic root of 381938802 is about 725.5454014151.

The spelling of 381938802 in words is "three hundred eighty-one million, nine hundred thirty-eight thousand, eight hundred two".