381159400 has 24 divisors (see below), whose sum is σ = 886196070. Its totient is φ = 152463680.

The previous prime is 381159391. The next prime is 381159413. The reversal of 381159400 is 4951183.

381159400 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 294259716 + 86899684 = 17154^2 + 9322^2 .

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, 952699 + ... + 953098.

Almost surely, 2^381159400 is an apocalyptic number.

It is an amenable number.

381159400 is an abundant number, since it is smaller than the sum of its proper divisors (505036670).

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

381159400 is a wasteful number, since it uses less digits than its factorization.

381159400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905813 (or 1905804 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 381159400 is about 19523.3040236534. The cubic root of 381159400 is about 725.0515381515.

The spelling of 381159400 in words is "three hundred eighty-one million, one hundred fifty-nine thousand, four hundred".