13140628 has 24 divisors (see below), whose sum is σ = 24775520. Its totient is φ = 6078240.

The previous prime is 13140607. The next prime is 13140649. The reversal of 13140628 is 82604131.

It is an interprime number because it is at equal distance from previous prime (13140607) and next prime (13140649).

It is a super-2 number, since 2×13140628² = 345352208468768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1258 + ... + 5278.

Almost surely, 2^13140628 is an apocalyptic number.

It is an amenable number.

13140628 is a deficient number, since it is larger than the sum of its proper divisors (11634892).

13140628 is a wasteful number, since it uses less digits than its factorization.

13140628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4087 (or 4085 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 13140628 is about 3625.0004137931. Note that the first 3 decimals coincide. The cubic root of 13140628 is about 235.9782848927.

Adding to 13140628 its reverse (82604131), we get a palindrome (95744759).

The spelling of 13140628 in words is "thirteen million, one hundred forty thousand, six hundred twenty-eight".