7272744 has 64 divisors (see below), whose sum is σ = 19656000. Its totient is φ = 2234880.

The previous prime is 7272737. The next prime is 7272751. The reversal of 7272744 is 4472727.

It is an interprime number because it is at equal distance from previous prime (7272737) and next prime (7272751).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18502 + ... + 18890.

It is an arithmetic number, because the mean of its divisors is an integer number (307125).

Almost surely, 2^7272744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7272744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9828000).

7272744 is an abundant number, since it is smaller than the sum of its proper divisors (12383256).

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

7272744 is a wasteful number, since it uses less digits than its factorization.

7272744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 454 counting only the distinct ones).

The product of its digits is 21952, while the sum is 33.

The square root of 7272744 is about 2696.8025511706. The cubic root of 7272744 is about 193.7460097687.

It can be divided in two parts, 72727 and 44, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 7272744 in words is "seven million, two hundred seventy-two thousand, seven hundred forty-four".