420604398 has 12 divisors (see below), whose sum is σ = 911309568. Its totient is φ = 140201460.

The previous prime is 420604397. The next prime is 420604399. The reversal of 420604398 is 893406024.

It is a happy number.

420604398 is a `hidden beast` number, since 42 + 0 + 604 + 3 + 9 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (420604397) and next prime (420604399).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420604391) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11683438 + ... + 11683473.

It is an arithmetic number, because the mean of its divisors is an integer number (75942464).

Almost surely, 2^420604398 is an apocalyptic number.

420604398 is an abundant number, since it is smaller than the sum of its proper divisors (490705170).

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

420604398 is a wasteful number, since it uses less digits than its factorization.

420604398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23366919 (or 23366916 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 420604398 is about 20508.6420320800. The cubic root of 420604398 is about 749.2462934891.

The spelling of 420604398 in words is "four hundred twenty million, six hundred four thousand, three hundred ninety-eight".