7442856 has 48 divisors (see below), whose sum is σ = 20311200. Its totient is φ = 2462112.

The previous prime is 7442849. The next prime is 7442863. The reversal of 7442856 is 6582447.

It is an interprime number because it is at equal distance from previous prime (7442849) and next prime (7442863).

It is a super-2 number, since 2×7442856² = 110792210873472, 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 7442856.

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, 11715 + ... + 12333.

It is an arithmetic number, because the mean of its divisors is an integer number (423150).

Almost surely, 2^7442856 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 7442856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10155600).

7442856 is an abundant number, since it is smaller than the sum of its proper divisors (12868344).

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

7442856 is a wasteful number, since it uses less digits than its factorization.

7442856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 791 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 7442856 is about 2728.1598193654. The cubic root of 7442856 is about 195.2449781017.

It can be divided in two parts, 744 and 2856, that added together give a square (3600 = 60²).

The spelling of 7442856 in words is "seven million, four hundred forty-two thousand, eight hundred fifty-six".