7457028 has 12 divisors (see below), whose sum is σ = 17399760. Its totient is φ = 2485672.

The previous prime is 7457011. The next prime is 7457053. The reversal of 7457028 is 8207547.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 7457028.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310698 + ... + 310721.

It is an arithmetic number, because the mean of its divisors is an integer number (1449980).

Almost surely, 2^7457028 is an apocalyptic number.

It is an amenable number.

7457028 is an abundant number, since it is smaller than the sum of its proper divisors (9942732).

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

7457028 is a wasteful number, since it uses less digits than its factorization.

7457028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621426 (or 621424 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 7457028 is about 2730.7559392959. The cubic root of 7457028 is about 195.3688220247.

The spelling of 7457028 in words is "seven million, four hundred fifty-seven thousand, twenty-eight".