420564022 has 4 divisors (see below), whose sum is σ = 630846036. Its totient is φ = 210282010.

The previous prime is 420564007. The next prime is 420564041. The reversal of 420564022 is 220465024.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105141004 + ... + 105141007.

It is an arithmetic number, because the mean of its divisors is an integer number (157711509).

Almost surely, 2^420564022 is an apocalyptic number.

420564022 is a deficient number, since it is larger than the sum of its proper divisors (210282014).

420564022 is a wasteful number, since it uses less digits than its factorization.

420564022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210282013.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 420564022 is about 20507.6576429391. The cubic root of 420564022 is about 749.2223180412. Note that the first 3 decimals are identical.

The spelling of 420564022 in words is "four hundred twenty million, five hundred sixty-four thousand, twenty-two".