421282972 has 24 divisors (see below), whose sum is σ = 846599040. Its totient is φ = 181413360.

The previous prime is 421282957. The next prime is 421282987. The reversal of 421282972 is 279282124.

It is an interprime number because it is at equal distance from previous prime (421282957) and next prime (421282987).

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, 251128 + ... + 252799.

It is an arithmetic number, because the mean of its divisors is an integer number (35274960).

Almost surely, 2^421282972 is an apocalyptic number.

It is an amenable number.

421282972 is an abundant number, since it is smaller than the sum of its proper divisors (425316068).

421282972 is a wasteful number, since it uses less digits than its factorization.

421282972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503961 (or 503959 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 421282972 is about 20525.1789760772. The cubic root of 421282972 is about 749.6490043543.

The spelling of 421282972 in words is "four hundred twenty-one million, two hundred eighty-two thousand, nine hundred seventy-two".