557671842 has 144 divisors (see below), whose sum is σ = 1603280952. Its totient is φ = 138378240.

The previous prime is 557671817. The next prime is 557671853. The reversal of 557671842 is 248176755.

557671842 is a `hidden beast` number, since 5 + 576 + 71 + 8 + 4 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 468765801 + 88906041 = 21651^2 + 9429^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 193492 + ... + 196352.

Almost surely, 2^557671842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 557671842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801640476).

557671842 is an abundant number, since it is smaller than the sum of its proper divisors (1045609110).

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

557671842 is a wasteful number, since it uses less digits than its factorization.

557671842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2913 (or 2903 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 557671842 is about 23615.0765825563. The cubic root of 557671842 is about 823.1132110363.

The spelling of 557671842 in words is "five hundred fifty-seven million, six hundred seventy-one thousand, eight hundred forty-two".