381479575 has 24 divisors (see below), whose sum is σ = 508373712. Its totient is φ = 282923520.

The previous prime is 381479573. The next prime is 381479591. The reversal of 381479575 is 575974183.

It is a happy number.

It is not a de Polignac number, because 381479575 - 2¹ = 381479573 is a prime.

It is a super-2 number, since 2×381479575² = 291053332284361250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381479573) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21777 + ... + 35173.

It is an arithmetic number, because the mean of its divisors is an integer number (21182238).

Almost surely, 2^381479575 is an apocalyptic number.

381479575 is a deficient number, since it is larger than the sum of its proper divisors (126894137).

381479575 is a wasteful number, since it uses less digits than its factorization.

381479575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13491 (or 13486 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 49.

The square root of 381479575 is about 19531.5021183728. The cubic root of 381479575 is about 725.2544964643.

The spelling of 381479575 in words is "three hundred eighty-one million, four hundred seventy-nine thousand, five hundred seventy-five".