381352572 has 36 divisors (see below), whose sum is σ = 1014711880. Its totient is φ = 120426912.

The previous prime is 381352561. The next prime is 381352597. The reversal of 381352572 is 275253183.

It is a happy number.

381352572 is a `hidden beast` number, since 3 + 81 + 3 + 5 + 2 + 572 = 666.

381352572 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

381352572 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 278083 + ... + 279450.

Almost surely, 2^381352572 is an apocalyptic number.

It is an amenable number.

381352572 is an abundant number, since it is smaller than the sum of its proper divisors (633359308).

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

381352572 is a wasteful number, since it uses less digits than its factorization.

381352572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557562 (or 557557 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 381352572 is about 19528.2506128941. The cubic root of 381352572 is about 725.1740031024.

It can be divided in two parts, 381352 and 572, that added together give a square (381924 = 618²).

The spelling of 381352572 in words is "three hundred eighty-one million, three hundred fifty-two thousand, five hundred seventy-two".