7913140 has 12 divisors (see below), whose sum is σ = 16617636. Its totient is φ = 3165248.

The previous prime is 7913117. The next prime is 7913159. The reversal of 7913140 is 413197.

It can be written as a sum of positive squares in 2 ways, for example, as 6290064 + 1623076 = 2508^2 + 1274^2 .

It is a congruent number.

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, 197809 + ... + 197848.

It is an arithmetic number, because the mean of its divisors is an integer number (1384803).

Almost surely, 2^7913140 is an apocalyptic number.

It is an amenable number.

7913140 is an abundant number, since it is smaller than the sum of its proper divisors (8704496).

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

7913140 is a wasteful number, since it uses less digits than its factorization.

7913140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395666 (or 395664 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 7913140 is about 2813.0303944323. The cubic root of 7913140 is about 199.2735310762.

The spelling of 7913140 in words is "seven million, nine hundred thirteen thousand, one hundred forty".