7840480 has 24 divisors (see below), whose sum is σ = 18523512. Its totient is φ = 3136128.

The previous prime is 7840439. The next prime is 7840499. The reversal of 7840480 is 840487.

It is a super-2 number, since 2×7840480² = 122946253260800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24342 + ... + 24661.

It is an arithmetic number, because the mean of its divisors is an integer number (771813).

Almost surely, 2^7840480 is an apocalyptic number.

It is an amenable number.

7840480 is an abundant number, since it is smaller than the sum of its proper divisors (10683032).

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

7840480 is a wasteful number, since it uses less digits than its factorization.

7840480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49018 (or 49010 counting only the distinct ones).

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

The square root of 7840480 is about 2800.0857129738. The cubic root of 7840480 is about 198.6617318314.

The spelling of 7840480 in words is "seven million, eight hundred forty thousand, four hundred eighty".