7894480 has 40 divisors (see below), whose sum is σ = 20025504. Its totient is φ = 2870400.

The previous prime is 7894457. The next prime is 7894489. The reversal of 7894480 is 844987.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7894489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3606 + ... + 5365.

Almost surely, 2^7894480 is an apocalyptic number.

It is an amenable number.

7894480 is an abundant number, since it is smaller than the sum of its proper divisors (12131024).

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

7894480 is a wasteful number, since it uses less digits than its factorization.

7894480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8995 (or 8989 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 7894480 is about 2809.7117289857. The cubic root of 7894480 is about 199.1167719494.

The spelling of 7894480 in words is "seven million, eight hundred ninety-four thousand, four hundred eighty".