556426430 has 32 divisors (see below), whose sum is σ = 1153405440. Its totient is φ = 189315360.

The previous prime is 556426427. The next prime is 556426433. The reversal of 556426430 is 34624655.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (556426427) and next prime (556426433).

It is a super-2 number, since 2×556426430² = 619220744005089800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556426433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21170 + ... + 39509.

It is an arithmetic number, because the mean of its divisors is an integer number (36043920).

Almost surely, 2^556426430 is an apocalyptic number.

556426430 is an abundant number, since it is smaller than the sum of its proper divisors (596979010).

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

556426430 is a wasteful number, since it uses less digits than its factorization.

556426430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60824.

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 556426430 is about 23588.6928421225. The cubic root of 556426430 is about 822.5000194012.

The spelling of 556426430 in words is "five hundred fifty-six million, four hundred twenty-six thousand, four hundred thirty".