557259340 has 48 divisors (see below), whose sum is σ = 1285885440. Its totient is φ = 201170880.

The previous prime is 557259323. The next prime is 557259359. The reversal of 557259340 is 43952755.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 557259293 and 557259302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21469 + ... + 39691.

It is an arithmetic number, because the mean of its divisors is an integer number (26789280).

Almost surely, 2^557259340 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 557259340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (642942720).

557259340 is an abundant number, since it is smaller than the sum of its proper divisors (728626100).

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

557259340 is a wasteful number, since it uses less digits than its factorization.

557259340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18382 (or 18380 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 40.

The square root of 557259340 is about 23606.3410972561. The cubic root of 557259340 is about 822.9102125635.

The spelling of 557259340 in words is "five hundred fifty-seven million, two hundred fifty-nine thousand, three hundred forty".