7506428 has 6 divisors (see below), whose sum is σ = 13136256. Its totient is φ = 3753212.

The previous prime is 7506419. The next prime is 7506439. The reversal of 7506428 is 8246057.

It is a super-2 number, since 2×7506428² = 112692922638368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7506394 and 7506403.

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 as a sum of consecutive naturals, namely, 938300 + ... + 938307.

It is an arithmetic number, because the mean of its divisors is an integer number (2189376).

Almost surely, 2^7506428 is an apocalyptic number.

It is an amenable number.

7506428 is a deficient number, since it is larger than the sum of its proper divisors (5629828).

7506428 is a wasteful number, since it uses less digits than its factorization.

7506428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876611 (or 1876609 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 7506428 is about 2739.7861230395. The cubic root of 7506428 is about 195.7992877992.

The spelling of 7506428 in words is "seven million, five hundred six thousand, four hundred twenty-eight".