428316556 has 12 divisors (see below), whose sum is σ = 756187992. Its totient is φ = 212262848.

The previous prime is 428316541. The next prime is 428316571. The reversal of 428316556 is 655613824.

It is an interprime number because it is at equal distance from previous prime (428316541) and next prime (428316571).

It is a super-2 number, since 2×428316556² = 366910144287402272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473350 + ... + 474253.

It is an arithmetic number, because the mean of its divisors is an integer number (63015666).

Almost surely, 2^428316556 is an apocalyptic number.

It is an amenable number.

428316556 is a deficient number, since it is larger than the sum of its proper divisors (327871436).

428316556 is a wasteful number, since it uses less digits than its factorization.

428316556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947720 (or 947718 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 428316556 is about 20695.8101073623. The cubic root of 428316556 is about 753.7979533070.

The spelling of 428316556 in words is "four hundred twenty-eight million, three hundred sixteen thousand, five hundred fifty-six".