556428436 has 12 divisors (see below), whose sum is σ = 974866228. Its totient is φ = 277895232.

The previous prime is 556428421. The next prime is 556428437. The reversal of 556428436 is 634824655.

It can be written as a sum of positive squares in 2 ways, for example, as 428738436 + 127690000 = 20706^2 + 11300^2 .

It is a super-2 number, since 2×556428436² = 619225208778812192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 556428392 and 556428401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556428437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75801 + ... + 82816.

Almost surely, 2^556428436 is an apocalyptic number.

It is an amenable number.

556428436 is a deficient number, since it is larger than the sum of its proper divisors (418437792).

556428436 is a wasteful number, since it uses less digits than its factorization.

556428436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159498 (or 159496 counting only the distinct ones).

The product of its digits is 691200, while the sum is 43.

The square root of 556428436 is about 23588.7353624564. The cubic root of 556428436 is about 822.5010078116.

The spelling of 556428436 in words is "five hundred fifty-six million, four hundred twenty-eight thousand, four hundred thirty-six".