421620486 has 16 divisors (see below), whose sum is σ = 963704064. Its totient is φ = 120462984.

The previous prime is 421620449. The next prime is 421620533. The reversal of 421620486 is 684026124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5019250 + ... + 5019333.

It is an arithmetic number, because the mean of its divisors is an integer number (60231504).

Almost surely, 2^421620486 is an apocalyptic number.

421620486 is an abundant number, since it is smaller than the sum of its proper divisors (542083578).

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

421620486 is a wasteful number, since it uses less digits than its factorization.

421620486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10038595.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 421620486 is about 20533.3992801971. The cubic root of 421620486 is about 749.8491465486.

The spelling of 421620486 in words is "four hundred twenty-one million, six hundred twenty thousand, four hundred eighty-six".