381601377 has 12 divisors (see below), whose sum is σ = 580212880. Its totient is φ = 241011288.

The previous prime is 381601369. The next prime is 381601379. The reversal of 381601377 is 773106183.

It is not a de Polignac number, because 381601377 - 2³ = 381601369 is a prime.

It is a super-2 number, since 2×381601377² = 291239221856592258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (381601379) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1115623 + ... + 1115964.

Almost surely, 2^381601377 is an apocalyptic number.

It is an amenable number.

381601377 is a deficient number, since it is larger than the sum of its proper divisors (198611503).

381601377 is a wasteful number, since it uses less digits than its factorization.

381601377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231612 (or 2231609 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 381601377 is about 19534.6199604702. The cubic root of 381601377 is about 725.3316766979.

The spelling of 381601377 in words is "three hundred eighty-one million, six hundred one thousand, three hundred seventy-seven".