557394 has 8 divisors (see below), whose sum is σ = 1114800. Its totient is φ = 185796.

The previous prime is 557377. The next prime is 557423. The reversal of 557394 is 493755.

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

557394 is an admirable number.

It is an unprimeable number.

557394 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46444 + ... + 46455.

It is an arithmetic number, because the mean of its divisors is an integer number (139350).

2⁵⁵⁷³⁹⁴ is an apocalyptic number.

557394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

557394 is a wasteful number, since it uses less digits than its factorization.

557394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92904.

The product of its digits is 18900, while the sum is 33.

The square root of 557394 is about 746.5882399288. The cubic root of 557394 is about 82.2976491796.

The spelling of 557394 in words is "five hundred fifty-seven thousand, three hundred ninety-four".