7996140 has 72 divisors (see below), whose sum is σ = 25054848. Its totient is φ = 2062080.

The previous prime is 7996133. The next prime is 7996187. The reversal of 7996140 is 416997.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7996095 and 7996104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4864 + ... + 6296.

It is an arithmetic number, because the mean of its divisors is an integer number (347984).

Almost surely, 2^7996140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7996140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12527424).

7996140 is an abundant number, since it is smaller than the sum of its proper divisors (17058708).

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

7996140 is a wasteful number, since it uses less digits than its factorization.

7996140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479 (or 1474 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 7996140 is about 2827.7446843730. The cubic root of 7996140 is about 199.9678281585.

The spelling of 7996140 in words is "seven million, nine hundred ninety-six thousand, one hundred forty".