381324929 has 4 divisors (see below), whose sum is σ = 381438384. Its totient is φ = 381211476.

The previous prime is 381324919. The next prime is 381324949. The reversal of 381324929 is 929423183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 381324929 - 2⁸ = 381324673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381324919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51527 + ... + 58460.

It is an arithmetic number, because the mean of its divisors is an integer number (95359596).

Almost surely, 2^381324929 is an apocalyptic number.

It is an amenable number.

381324929 is a deficient number, since it is larger than the sum of its proper divisors (113455).

381324929 is a wasteful number, since it uses less digits than its factorization.

381324929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113454.

The product of its digits is 93312, while the sum is 41.

The square root of 381324929 is about 19527.5428305765. The cubic root of 381324929 is about 725.1564808489.

The spelling of 381324929 in words is "three hundred eighty-one million, three hundred twenty-four thousand, nine hundred twenty-nine".