381026826 has 24 divisors (see below), whose sum is σ = 826891104. Its totient is φ = 126803880.

The previous prime is 381026803. The next prime is 381026857. The reversal of 381026826 is 628620183.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5416 + ... + 28131.

It is an arithmetic number, because the mean of its divisors is an integer number (34453796).

Almost surely, 2^381026826 is an apocalyptic number.

381026826 is an abundant number, since it is smaller than the sum of its proper divisors (445864278).

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

381026826 is a wasteful number, since it uses less digits than its factorization.

381026826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34186 (or 34183 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 381026826 is about 19519.9084526542. The cubic root of 381026826 is about 724.9674664751.

The spelling of 381026826 in words is "three hundred eighty-one million, twenty-six thousand, eight hundred twenty-six".