7918480 has 20 divisors (see below), whose sum is σ = 18410652. Its totient is φ = 3167360.

The previous prime is 7918457. The next prime is 7918483. The reversal of 7918480 is 848197.

It can be written as a sum of positive squares in 2 ways, for example, as 1527696 + 6390784 = 1236^2 + 2528^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (7918483) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 49411 + ... + 49570.

Almost surely, 2^7918480 is an apocalyptic number.

It is an amenable number.

7918480 is an abundant number, since it is smaller than the sum of its proper divisors (10492172).

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

7918480 is a wasteful number, since it uses less digits than its factorization.

7918480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98994 (or 98988 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 7918480 is about 2813.9793886949. The cubic root of 7918480 is about 199.3183460455.

The spelling of 7918480 in words is "seven million, nine hundred eighteen thousand, four hundred eighty".