557834381 has 8 divisors (see below), whose sum is σ = 612080280. Its totient is φ = 505207872.

The previous prime is 557834363. The next prime is 557834437. The reversal of 557834381 is 183438755.

It is a happy number.

557834381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 31866025 + 525968356 = 5645^2 + 22934^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-557834381 is a prime.

It is a super-2 number, since 2×557834381² = 622358393251306322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557834881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404126 + ... + 405503.

It is an arithmetic number, because the mean of its divisors is an integer number (76510035).

Almost surely, 2^557834381 is an apocalyptic number.

It is an amenable number.

557834381 is a deficient number, since it is larger than the sum of its proper divisors (54245899).

557834381 is a wasteful number, since it uses less digits than its factorization.

557834381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809695.

The product of its digits is 403200, while the sum is 44.

The square root of 557834381 is about 23618.5177562014. The cubic root of 557834381 is about 823.1931714433.

The spelling of 557834381 in words is "five hundred fifty-seven million, eight hundred thirty-four thousand, three hundred eighty-one".