420868670 has 8 divisors (see below), whose sum is σ = 757563624. Its totient is φ = 168347464.

The previous prime is 420868667. The next prime is 420868687. The reversal of 420868670 is 76868024.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21043424 + ... + 21043443.

It is an arithmetic number, because the mean of its divisors is an integer number (94695453).

Almost surely, 2^420868670 is an apocalyptic number.

420868670 is a deficient number, since it is larger than the sum of its proper divisors (336694954).

420868670 is a wasteful number, since it uses less digits than its factorization.

420868670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42086874.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 420868670 is about 20515.0839627821. The cubic root of 420868670 is about 749.4031814992.

The spelling of 420868670 in words is "four hundred twenty million, eight hundred sixty-eight thousand, six hundred seventy".