420868662 has 16 divisors (see below), whose sum is σ = 842031552. Its totient is φ = 140240520.

The previous prime is 420868631. The next prime is 420868667. The reversal of 420868662 is 266868024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420868667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9237 + ... + 30447.

It is an arithmetic number, because the mean of its divisors is an integer number (52626972).

Almost surely, 2^420868662 is an apocalyptic number.

420868662 is an abundant number, since it is smaller than the sum of its proper divisors (421162890).

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

420868662 is a wasteful number, since it uses less digits than its factorization.

420868662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24523.

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 420868662 is about 20515.0837678036. The cubic root of 420868662 is about 749.4031767509.

The spelling of 420868662 in words is "four hundred twenty million, eight hundred sixty-eight thousand, six hundred sixty-two".