7502428 has 12 divisors (see below), whose sum is σ = 13314672. Its totient is φ = 3698240.

The previous prime is 7502413. The next prime is 7502431. The reversal of 7502428 is 8242057.

It is a junction number, because it is equal to n+sod(n) for n = 7502396 and 7502405.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 12925 + ... + 13492.

It is an arithmetic number, because the mean of its divisors is an integer number (1109556).

Almost surely, 2^7502428 is an apocalyptic number.

It is an amenable number.

7502428 is a deficient number, since it is larger than the sum of its proper divisors (5812244).

7502428 is a wasteful number, since it uses less digits than its factorization.

7502428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26492 (or 26490 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 7502428 is about 2739.0560417779. The cubic root of 7502428 is about 195.7645026653.

The spelling of 7502428 in words is "seven million, five hundred two thousand, four hundred twenty-eight".