381421659 has 8 divisors (see below), whose sum is σ = 526098960. Its totient is φ = 245512736.

The previous prime is 381421631. The next prime is 381421679. The reversal of 381421659 is 956124183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381421659 - 2²¹ = 379324507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381421619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2191992 + ... + 2192165.

It is an arithmetic number, because the mean of its divisors is an integer number (65762370).

Almost surely, 2^381421659 is an apocalyptic number.

381421659 is a deficient number, since it is larger than the sum of its proper divisors (144677301).

381421659 is a wasteful number, since it uses less digits than its factorization.

381421659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4384189.

The product of its digits is 51840, while the sum is 39.

The square root of 381421659 is about 19530.0194316340. The cubic root of 381421659 is about 725.2177920394.

The spelling of 381421659 in words is "three hundred eighty-one million, four hundred twenty-one thousand, six hundred fifty-nine".