557234244 has 72 divisors (see below), whose sum is σ = 1619549568. Its totient is φ = 158244480.

The previous prime is 557234219. The next prime is 557234273. The reversal of 557234244 is 442432755.

557234244 is a `hidden beast` number, since 5 + 572 + 3 + 42 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 557234199 and 557234208.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35464 + ... + 48704.

It is an arithmetic number, because the mean of its divisors is an integer number (22493744).

Almost surely, 2^557234244 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 557234244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (809774784).

557234244 is an abundant number, since it is smaller than the sum of its proper divisors (1062315324).

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

557234244 is a wasteful number, since it uses less digits than its factorization.

557234244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13425 (or 13420 counting only the distinct ones).

The product of its digits is 134400, while the sum is 36.

The square root of 557234244 is about 23605.8095391791. The cubic root of 557234244 is about 822.8978592100.

Adding to 557234244 its reverse (442432755), we get a palindrome (999666999).

The spelling of 557234244 in words is "five hundred fifty-seven million, two hundred thirty-four thousand, two hundred forty-four".