381348836 has 24 divisors (see below), whose sum is σ = 730156896. Its totient is φ = 172833920.

The previous prime is 381348823. The next prime is 381348841. The reversal of 381348836 is 638843183.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2780 + ... + 27756.

It is an arithmetic number, because the mean of its divisors is an integer number (30423204).

Almost surely, 2^381348836 is an apocalyptic number.

It is an amenable number.

381348836 is a deficient number, since it is larger than the sum of its proper divisors (348808060).

381348836 is a wasteful number, since it uses less digits than its factorization.

381348836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25339 (or 25337 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 381348836 is about 19528.1549563700. The cubic root of 381348836 is about 725.1716349885.

The spelling of 381348836 in words is "three hundred eighty-one million, three hundred forty-eight thousand, eight hundred thirty-six".