381396734 has 8 divisors (see below), whose sum is σ = 605747808. Its totient is φ = 179480800.

The previous prime is 381396733. The next prime is 381396737. The reversal of 381396734 is 437693183.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381396731) 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, 5608742 + ... + 5608809.

It is an arithmetic number, because the mean of its divisors is an integer number (75718476).

Almost surely, 2^381396734 is an apocalyptic number.

381396734 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

381396734 is a deficient number, since it is larger than the sum of its proper divisors (224351074).

381396734 is a wasteful number, since it uses less digits than its factorization.

381396734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11217570.

The product of its digits is 326592, while the sum is 44.

The square root of 381396734 is about 19529.3813010039. The cubic root of 381396734 is about 725.2019946082.

The spelling of 381396734 in words is "three hundred eighty-one million, three hundred ninety-six thousand, seven hundred thirty-four".