556722408 has 64 divisors (see below), whose sum is σ = 1528632000. Its totient is φ = 167559680.

The previous prime is 556722373. The next prime is 556722433. The reversal of 556722408 is 804227655.

It is a Smith number, since the sum of its digits (39) 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 15 ways as a sum of consecutive naturals, for example, 32260 + ... + 46412.

It is an arithmetic number, because the mean of its divisors is an integer number (23884875).

Almost surely, 2^556722408 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 556722408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (764316000).

556722408 is an abundant number, since it is smaller than the sum of its proper divisors (971909592).

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

556722408 is a wasteful number, since it uses less digits than its factorization.

556722408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14322 (or 14318 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 556722408 is about 23594.9657342409. The cubic root of 556722408 is about 822.6458300876.

The spelling of 556722408 in words is "five hundred fifty-six million, seven hundred twenty-two thousand, four hundred eight".