7272430 has 32 divisors (see below), whose sum is σ = 15124320. Its totient is φ = 2488320.

The previous prime is 7272427. The next prime is 7272431. The reversal of 7272430 is 342727.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7272395 and 7272404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7272431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75 + ... + 3814.

It is an arithmetic number, because the mean of its divisors is an integer number (472635).

Almost surely, 2^7272430 is an apocalyptic number.

7272430 is an abundant number, since it is smaller than the sum of its proper divisors (7851890).

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

7272430 is a wasteful number, since it uses less digits than its factorization.

7272430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3924.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 7272430 is about 2696.7443334510. The cubic root of 7272430 is about 193.7432214070.

The spelling of 7272430 in words is "seven million, two hundred seventy-two thousand, four hundred thirty".