420180564 has 24 divisors (see below), whose sum is σ = 1001282688. Its totient is φ = 137080000.

The previous prime is 420180533. The next prime is 420180581. The reversal of 420180564 is 465081024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371937 + ... + 373064.

It is an arithmetic number, because the mean of its divisors is an integer number (41720112).

Almost surely, 2^420180564 is an apocalyptic number.

It is an amenable number.

420180564 is an abundant number, since it is smaller than the sum of its proper divisors (581102124).

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

420180564 is a wasteful number, since it uses less digits than its factorization.

420180564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745055 (or 745053 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 420180564 is about 20498.3063690638. The cubic root of 420180564 is about 748.9945424536.

The spelling of 420180564 in words is "four hundred twenty million, one hundred eighty thousand, five hundred sixty-four".