421423932 has 24 divisors (see below), whose sum is σ = 1009899856. Its totient is φ = 136677888.

The previous prime is 421423907. The next prime is 421423939. The reversal of 421423932 is 239324124.

It is a self number, because there is not a number n which added to its sum of digits gives 421423932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421423939) 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, 474133 + ... + 475020.

Almost surely, 2^421423932 is an apocalyptic number.

It is an amenable number.

421423932 is an abundant number, since it is smaller than the sum of its proper divisors (588475924).

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

421423932 is a wasteful number, since it uses less digits than its factorization.

421423932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949197 (or 949195 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 421423932 is about 20528.6125200901. The cubic root of 421423932 is about 749.7326051224.

The spelling of 421423932 in words is "four hundred twenty-one million, four hundred twenty-three thousand, nine hundred thirty-two".