7081920 has 84 divisors (see below), whose sum is σ = 24368760. Its totient is φ = 1887744.

The previous prime is 7081909. The next prime is 7081931. The reversal of 7081920 is 291807.

It is an interprime number because it is at equal distance from previous prime (7081909) and next prime (7081931).

It is a zygodrome in base 8.

It is a congruent number.

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, 1651 + ... + 4109.

Almost surely, 2^7081920 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 7081920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12184380).

7081920 is an abundant number, since it is smaller than the sum of its proper divisors (17286840).

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

7081920 is a wasteful number, since it uses less digits than its factorization.

7081920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482 (or 2469 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 7081920 is about 2661.1877047664. The cubic root of 7081920 is about 192.0364514126.

It can be divided in two parts, 7081 and 920, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 7081920 in words is "seven million, eighty-one thousand, nine hundred twenty".