556143408 has 120 divisors (see below), whose sum is σ = 1622774608. Its totient is φ = 184384512.

The previous prime is 556143403. The next prime is 556143421. The reversal of 556143408 is 804341655.

It is a happy number.

556143408 is a `hidden beast` number, since 5 + 5 + 614 + 34 + 0 + 8 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (556143403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1216716 + ... + 1217172.

Almost surely, 2^556143408 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 556143408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (811387304).

556143408 is an abundant number, since it is smaller than the sum of its proper divisors (1066631200).

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

556143408 is a wasteful number, since it uses less digits than its factorization.

556143408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793 (or 775 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 556143408 is about 23582.6929759941. The cubic root of 556143408 is about 822.3605429928.

The spelling of 556143408 in words is "five hundred fifty-six million, one hundred forty-three thousand, four hundred eight".