7480840 has 32 divisors (see below), whose sum is σ = 17415000. Its totient is φ = 2888704.

The previous prime is 7480831. The next prime is 7480853. The reversal of 7480840 is 480847.

It can be written as a sum of positive squares in 4 ways, for example, as 7322436 + 158404 = 2706^2 + 398^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2065 + ... + 4384.

Almost surely, 2^7480840 is an apocalyptic number.

It is an amenable number.

7480840 is an abundant number, since it is smaller than the sum of its proper divisors (9934160).

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

7480840 is a wasteful number, since it uses less digits than its factorization.

7480840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6489 (or 6485 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 7480840 is about 2735.1124291334. The cubic root of 7480840 is about 195.5765535495.

The spelling of 7480840 in words is "seven million, four hundred eighty thousand, eight hundred forty".