557041638 has 16 divisors (see below), whose sum is σ = 1117889136. Its totient is φ = 185046240.

The previous prime is 557041637. The next prime is 557041643. The reversal of 557041638 is 836140755.

It is a junction number, because it is equal to n+sod(n) for n = 557041596 and 557041605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557041633) 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, 156673 + ... + 160188.

It is an arithmetic number, because the mean of its divisors is an integer number (69868071).

Almost surely, 2^557041638 is an apocalyptic number.

557041638 is an abundant number, since it is smaller than the sum of its proper divisors (560847498).

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

557041638 is a wasteful number, since it uses less digits than its factorization.

557041638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317159.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 557041638 is about 23601.7295552678. The cubic root of 557041638 is about 822.8030377285.

The spelling of 557041638 in words is "five hundred fifty-seven million, forty-one thousand, six hundred thirty-eight".