420990662 has 16 divisors (see below), whose sum is σ = 649290192. Its totient is φ = 204573600.

The previous prime is 420990659. The next prime is 420990667. The reversal of 420990662 is 266099024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420990667) 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, 75068 + ... + 80480.

It is an arithmetic number, because the mean of its divisors is an integer number (40580637).

Almost surely, 2^420990662 is an apocalyptic number.

420990662 is a deficient number, since it is larger than the sum of its proper divisors (228299530).

420990662 is a wasteful number, since it uses less digits than its factorization.

420990662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6503.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 420990662 is about 20518.0569742849. The cubic root of 420990662 is about 749.4755812506.

The spelling of 420990662 in words is "four hundred twenty million, nine hundred ninety thousand, six hundred sixty-two".