7457572 has 24 divisors (see below), whose sum is σ = 13741560. Its totient is φ = 3536640.

The previous prime is 7457561. The next prime is 7457573. The reversal of 7457572 is 2757547.

It can be written as a sum of positive squares in 4 ways, for example, as 2903616 + 4553956 = 1704^2 + 2134^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7457573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5454 + ... + 6682.

It is an arithmetic number, because the mean of its divisors is an integer number (572565).

Almost surely, 2^7457572 is an apocalyptic number.

It is an amenable number.

7457572 is a deficient number, since it is larger than the sum of its proper divisors (6283988).

7457572 is a wasteful number, since it uses less digits than its factorization.

7457572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311 (or 1309 counting only the distinct ones).

The product of its digits is 68600, while the sum is 37.

The square root of 7457572 is about 2730.8555435980. The cubic root of 7457572 is about 195.3735727133.

It can be divided in two parts, 74575 and 72, that added together give a palindrome (74647).

The spelling of 7457572 in words is "seven million, four hundred fifty-seven thousand, five hundred seventy-two".