421768952 has 16 divisors (see below), whose sum is σ = 862709400. Its totient is φ = 191713120.

The previous prime is 421768939. The next prime is 421768967. The reversal of 421768952 is 259867124.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 2396327 + ... + 2396502.

Almost surely, 2^421768952 is an apocalyptic number.

It is an amenable number.

421768952 is an abundant number, since it is smaller than the sum of its proper divisors (440940448).

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

421768952 is a wasteful number, since it uses less digits than its factorization.

421768952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4792846 (or 4792842 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 421768952 is about 20537.0141938890. The cubic root of 421768952 is about 749.9371514743.

The spelling of 421768952 in words is "four hundred twenty-one million, seven hundred sixty-eight thousand, nine hundred fifty-two".