381473365 has 16 divisors (see below), whose sum is σ = 563407488. Its totient is φ = 241459776.

The previous prime is 381473311. The next prime is 381473371. The reversal of 381473365 is 563374183.

It is a cyclic number.

It is not a de Polignac number, because 381473365 - 2²⁵ = 347918933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418747 + ... + 419656.

It is an arithmetic number, because the mean of its divisors is an integer number (35212968).

Almost surely, 2^381473365 is an apocalyptic number.

381473365 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

381473365 is a deficient number, since it is larger than the sum of its proper divisors (181934123).

381473365 is a wasteful number, since it uses less digits than its factorization.

381473365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838428.

The product of its digits is 181440, while the sum is 40.

The square root of 381473365 is about 19531.3431437779. The cubic root of 381473365 is about 725.2505610375.

The spelling of 381473365 in words is "three hundred eighty-one million, four hundred seventy-three thousand, three hundred sixty-five".