7944156 has 72 divisors (see below), whose sum is σ = 22748544. Its totient is φ = 2404080.

The previous prime is 7944149. The next prime is 7944163. The reversal of 7944156 is 6514497.

It is an interprime number because it is at equal distance from previous prime (7944149) and next prime (7944163).

It is a super-2 number, since 2×7944156² = 126219229104672, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 7944156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10321 + ... + 11063.

It is an arithmetic number, because the mean of its divisors is an integer number (315952).

Almost surely, 2^7944156 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 7944156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11374272).

7944156 is an abundant number, since it is smaller than the sum of its proper divisors (14804388).

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

7944156 is a wasteful number, since it uses less digits than its factorization.

7944156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773 (or 759 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 7944156 is about 2818.5379188508. The cubic root of 7944156 is about 199.5335462837.

It can be divided in two parts, 79441 and 56, that added together give a palindrome (79497).

The spelling of 7944156 in words is "seven million, nine hundred forty-four thousand, one hundred fifty-six".