421248732 has 24 divisors (see below), whose sum is σ = 985328400. Its totient is φ = 140071296.

The previous prime is 421248701. The next prime is 421248767. The reversal of 421248732 is 237842124.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 421248693 and 421248702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38007 + ... + 47822.

It is an arithmetic number, because the mean of its divisors is an integer number (41055350).

Almost surely, 2^421248732 is an apocalyptic number.

It is an amenable number.

421248732 is an abundant number, since it is smaller than the sum of its proper divisors (564079668).

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

421248732 is a wasteful number, since it uses less digits than its factorization.

421248732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86245 (or 86243 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 421248732 is about 20524.3448616515. The cubic root of 421248732 is about 749.6286944288.

The spelling of 421248732 in words is "four hundred twenty-one million, two hundred forty-eight thousand, seven hundred thirty-two".