7421272 has 32 divisors (see below), whose sum is σ = 14813280. Its totient is φ = 3477760.

The previous prime is 7421263. The next prime is 7421329. The reversal of 7421272 is 2721247.

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, 9372 + ... + 10132.

It is an arithmetic number, because the mean of its divisors is an integer number (462915).

Almost surely, 2^7421272 is an apocalyptic number.

It is an amenable number.

7421272 is a deficient number, since it is larger than the sum of its proper divisors (7392008).

7421272 is a wasteful number, since it uses less digits than its factorization.

7421272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 839 counting only the distinct ones).

The product of its digits is 1568, while the sum is 25.

The square root of 7421272 is about 2724.2011673149. The cubic root of 7421272 is about 195.0560610236.

Subtracting from 7421272 its sum of digits (25), we obtain a palindrome (7421247).

The spelling of 7421272 in words is "seven million, four hundred twenty-one thousand, two hundred seventy-two".