420644602 has 8 divisors (see below), whose sum is σ = 721105056. Its totient is φ = 180276252.

The previous prime is 420644597. The next prime is 420644603. The reversal of 420644602 is 206446024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (420644603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15023008 + ... + 15023035.

It is an arithmetic number, because the mean of its divisors is an integer number (90138132).

Almost surely, 2^420644602 is an apocalyptic number.

420644602 is a deficient number, since it is larger than the sum of its proper divisors (300460454).

420644602 is a wasteful number, since it uses less digits than its factorization.

420644602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30046052.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 420644602 is about 20509.6221808204. The cubic root of 420644602 is about 749.2701652780.

The spelling of 420644602 in words is "four hundred twenty million, six hundred forty-four thousand, six hundred two".