420642396 has 30 divisors (see below), whose sum is σ = 1099643160. Its totient is φ = 140214024.

The previous prime is 420642367. The next prime is 420642401. The reversal of 420642396 is 693246024.

420642396 is a `hidden beast` number, since 4 + 2 + 0 + 642 + 3 + 9 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 420642396.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 648816 + ... + 649463.

It is an arithmetic number, because the mean of its divisors is an integer number (36654772).

Almost surely, 2^420642396 is an apocalyptic number.

It is an amenable number.

420642396 is an abundant number, since it is smaller than the sum of its proper divisors (679000764).

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

420642396 is a wasteful number, since it uses less digits than its factorization.

420642396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298295 (or 1298284 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 420642396 is about 20509.5684011146. The cubic root of 420642396 is about 749.2688554685.

The spelling of 420642396 in words is "four hundred twenty million, six hundred forty-two thousand, three hundred ninety-six".