420132556 has 12 divisors (see below), whose sum is σ = 735658168. Its totient is φ = 209944512.

The previous prime is 420132533. The next prime is 420132563. The reversal of 420132556 is 655231024.

It is a super-2 number, since 2×420132556² = 353022729222186272, 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, 22446 + ... + 36661.

Almost surely, 2^420132556 is an apocalyptic number.

It is an amenable number.

420132556 is a deficient number, since it is larger than the sum of its proper divisors (315525612).

420132556 is a wasteful number, since it uses less digits than its factorization.

420132556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60888 (or 60886 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 420132556 is about 20497.1353120381. The cubic root of 420132556 is about 748.9660157498.

The spelling of 420132556 in words is "four hundred twenty million, one hundred thirty-two thousand, five hundred fifty-six".