381118590 has 24 divisors (see below), whose sum is σ = 990908568. Its totient is φ = 101631600.

The previous prime is 381118571. The next prime is 381118649. The reversal of 381118590 is 95811183.

381118590 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2117236 + ... + 2117415.

It is an arithmetic number, because the mean of its divisors is an integer number (41287857).

Almost surely, 2^381118590 is an apocalyptic number.

381118590 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

381118590 is an abundant number, since it is smaller than the sum of its proper divisors (609789978).

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

381118590 is a wasteful number, since it uses less digits than its factorization.

381118590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4234664 (or 4234661 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The square root of 381118590 is about 19522.2588344689. The cubic root of 381118590 is about 725.0256606058.

The spelling of 381118590 in words is "three hundred eighty-one million, one hundred eighteen thousand, five hundred ninety".