381427626 has 16 divisors (see below), whose sum is σ = 764136000. Its totient is φ = 126929088.

The previous prime is 381427619. The next prime is 381427663. The reversal of 381427626 is 626724183.

It is a happy number.

381427626 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49471 + ... + 56658.

It is an arithmetic number, because the mean of its divisors is an integer number (47758500).

Almost surely, 2^381427626 is an apocalyptic number.

381427626 is an abundant number, since it is smaller than the sum of its proper divisors (382708374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381427626 is a wasteful number, since it uses less digits than its factorization.

381427626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106733.

The product of its digits is 96768, while the sum is 39.

The square root of 381427626 is about 19530.1721958615. The cubic root of 381427626 is about 725.2215738138.

The spelling of 381427626 in words is "three hundred eighty-one million, four hundred twenty-seven thousand, six hundred twenty-six".