381346899 has 8 divisors (see below), whose sum is σ = 508761552. Its totient is φ = 254081760.

The previous prime is 381346883. The next prime is 381346939. The reversal of 381346899 is 998643183.

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

It is not a de Polignac number, because 381346899 - 2⁴ = 381346883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381346829) 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, 31284 + ... + 41729.

It is an arithmetic number, because the mean of its divisors is an integer number (63595194).

Almost surely, 2^381346899 is an apocalyptic number.

381346899 is a deficient number, since it is larger than the sum of its proper divisors (127414653).

381346899 is a wasteful number, since it uses less digits than its factorization.

381346899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74757.

The product of its digits is 1119744, while the sum is 51.

The square root of 381346899 is about 19528.1053612479. The cubic root of 381346899 is about 725.1704071889.

The spelling of 381346899 in words is "three hundred eighty-one million, three hundred forty-six thousand, eight hundred ninety-nine".