557894390 has 8 divisors (see below), whose sum is σ = 1004209920. Its totient is φ = 223157752.

The previous prime is 557894387. The next prime is 557894413. The reversal of 557894390 is 93498755.

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

It is a super-2 number, since 2×557894390² = 622492300786944200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27894710 + ... + 27894729.

It is an arithmetic number, because the mean of its divisors is an integer number (125526240).

Almost surely, 2^557894390 is an apocalyptic number.

557894390 is a deficient number, since it is larger than the sum of its proper divisors (446315530).

557894390 is a wasteful number, since it uses less digits than its factorization.

557894390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55789446.

The product of its (nonzero) digits is 1360800, while the sum is 50.

The square root of 557894390 is about 23619.7881023518. The cubic root of 557894390 is about 823.2226887035. Note that the first 3 decimals are identical.

The spelling of 557894390 in words is "five hundred fifty-seven million, eight hundred ninety-four thousand, three hundred ninety".