420129968 has 20 divisors (see below), whose sum is σ = 836003040. Its totient is φ = 204387264.

The previous prime is 420129967. The next prime is 420130001. The reversal of 420129968 is 869921024.

It is not an unprimeable number, because it can be changed into a prime (420129967) 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, 354248 + ... + 355431.

It is an arithmetic number, because the mean of its divisors is an integer number (41800152).

Almost surely, 2^420129968 is an apocalyptic number.

It is an amenable number.

420129968 is a deficient number, since it is larger than the sum of its proper divisors (415873072).

420129968 is a wasteful number, since it uses less digits than its factorization.

420129968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709724 (or 709718 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 420129968 is about 20497.0721811677. The cubic root of 420129968 is about 748.9644778796.

The spelling of 420129968 in words is "four hundred twenty million, one hundred twenty-nine thousand, nine hundred sixty-eight".