557436 has 48 divisors (see below), whose sum is σ = 1467648. Its totient is φ = 163200.

The previous prime is 557423. The next prime is 557443. The reversal of 557436 is 634755.

557436 = 50² + 51² + ... + 121².

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

557436 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 15 ways as a sum of consecutive naturals, for example, 5361 + ... + 5463.

It is an arithmetic number, because the mean of its divisors is an integer number (30576).

2⁵⁵⁷⁴³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 557436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733824).

557436 is an abundant number, since it is smaller than the sum of its proper divisors (910212).

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

557436 is a wasteful number, since it uses less digits than its factorization.

557436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 160 counting only the distinct ones).

The product of its digits is 12600, while the sum is 30.

The square root of 557436 is about 746.6163673534. The cubic root of 557436 is about 82.2997161882.

The spelling of 557436 in words is "five hundred fifty-seven thousand, four hundred thirty-six".