788331381 has 16 divisors (see below), whose sum is σ = 1080972864. Its totient is φ = 510808064.

The previous prime is 788331377. The next prime is 788331403. The reversal of 788331381 is 183133887.

It is not a de Polignac number, because 788331381 - 2² = 788331377 is a prime.

It is a super-2 number, since 2×788331381² = 1242932732538734322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (788331311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6156 + ... + 40181.

It is an arithmetic number, because the mean of its divisors is an integer number (67560804).

Almost surely, 2^788331381 is an apocalyptic number.

It is an amenable number.

788331381 is a deficient number, since it is larger than the sum of its proper divisors (292641483).

788331381 is a wasteful number, since it uses less digits than its factorization.

788331381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46500.

The product of its digits is 96768, while the sum is 42.

The square root of 788331381 is about 28077.2395544861. The cubic root of 788331381 is about 923.7822323242.

The spelling of 788331381 in words is "seven hundred eighty-eight million, three hundred thirty-one thousand, three hundred eighty-one".