7149028 has 12 divisors (see below), whose sum is σ = 12544812. Its totient is φ = 3564800.

The previous prime is 7149019. The next prime is 7149041. The reversal of 7149028 is 8209417.

It can be written as a sum of positive squares in 2 ways, for example, as 6360484 + 788544 = 2522^2 + 888^2 .

It is a super-2 number, since 2×7149028² = 102217202689568, which contains 22 as substring.

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, 625 + ... + 3832.

It is an arithmetic number, because the mean of its divisors is an integer number (1045401).

Almost surely, 2^7149028 is an apocalyptic number.

It is an amenable number.

7149028 is a deficient number, since it is larger than the sum of its proper divisors (5395784).

7149028 is a wasteful number, since it uses less digits than its factorization.

7149028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4862 (or 4860 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 7149028 is about 2673.7666315518. The cubic root of 7149028 is about 192.6411221320.

The spelling of 7149028 in words is "seven million, one hundred forty-nine thousand, twenty-eight".