420988968 has 32 divisors (see below), whose sum is σ = 1169414400. Its totient is φ = 140329584.

The previous prime is 420988961. The next prime is 420988991. The reversal of 420988968 is 869889024.

It is a super-2 number, since 2×420988968² = 354463422355410048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (420988961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 974296 + ... + 974727.

It is an arithmetic number, because the mean of its divisors is an integer number (36544200).

Almost surely, 2^420988968 is an apocalyptic number.

It is an amenable number.

420988968 is an abundant number, since it is smaller than the sum of its proper divisors (748425432).

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

420988968 is a wasteful number, since it uses less digits than its factorization.

420988968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949038 (or 1949028 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The square root of 420988968 is about 20518.0156935314. The cubic root of 420988968 is about 749.4745759921.

The spelling of 420988968 in words is "four hundred twenty million, nine hundred eighty-eight thousand, nine hundred sixty-eight".