420695604 has 36 divisors (see below), whose sum is σ = 1215343584. Its totient is φ = 120198672.

The previous prime is 420695591. The next prime is 420695623. The reversal of 420695604 is 406596024.

420695604 is a `hidden beast` number, since 42 + 0 + 6 + 9 + 5 + 604 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 834462 + ... + 834965.

It is an arithmetic number, because the mean of its divisors is an integer number (33759544).

Almost surely, 2^420695604 is an apocalyptic number.

It is an amenable number.

420695604 is an abundant number, since it is smaller than the sum of its proper divisors (794647980).

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

420695604 is a wasteful number, since it uses less digits than its factorization.

420695604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669444 (or 1669439 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 420695604 is about 20510.8655107482. The cubic root of 420695604 is about 749.3004463692.

The spelling of 420695604 in words is "four hundred twenty million, six hundred ninety-five thousand, six hundred four".