557266842 has 192 divisors, whose sum is σ = 1455442560. Its totient is φ = 152409600.

The previous prime is 557266837. The next prime is 557266877. The reversal of 557266842 is 248662755.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9135492 + ... + 9135552.

It is an arithmetic number, because the mean of its divisors is an integer number (7580430).

Almost surely, 2^557266842 is an apocalyptic number.

It is a pronic number, being equal to 23606×23607.

It is a practical number, because each smaller number is the sum of distinct divisors of 557266842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727721280).

557266842 is an abundant number, since it is smaller than the sum of its proper divisors (898175718).

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

557266842 is a wasteful number, since it uses less digits than its factorization.

557266842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 186 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 557266842 is about 23606.4999947048. The cubic root of 557266842 is about 822.9139053053.

The spelling of 557266842 in words is "five hundred fifty-seven million, two hundred sixty-six thousand, eight hundred forty-two".