7996940 has 36 divisors (see below), whose sum is σ = 19273296. Its totient is φ = 2730336.

The previous prime is 7996913. The next prime is 7996951. The reversal of 7996940 is 496997.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7996891 and 7996900.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33341 + ... + 33579.

Almost surely, 2^7996940 is an apocalyptic number.

7996940 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7996940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9636648).

7996940 is an abundant number, since it is smaller than the sum of its proper divisors (11276356).

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

7996940 is a wasteful number, since it uses less digits than its factorization.

7996940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 7996940 is about 2827.8861363216. The cubic root of 7996940 is about 199.9744967481.

The spelling of 7996940 in words is "seven million, nine hundred ninety-six thousand, nine hundred forty".