7640120 has 32 divisors (see below), whose sum is σ = 17269200. Its totient is φ = 3042048.

The previous prime is 7640069. The next prime is 7640131. The reversal of 7640120 is 210467.

It is a super-2 number, since 2×7640120² = 116742867228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 7640092 and 7640101.

It is a congruent number.

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, 16127 + ... + 16593.

Almost surely, 2^7640120 is an apocalyptic number.

It is an amenable number.

7640120 is an abundant number, since it is smaller than the sum of its proper divisors (9629080).

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

7640120 is a wasteful number, since it uses less digits than its factorization.

7640120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 883 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 7640120 is about 2764.0766993700. The cubic root of 7640120 is about 196.9548712623.

Adding to 7640120 its reverse (210467), we get a palindrome (7850587).

The spelling of 7640120 in words is "seven million, six hundred forty thousand, one hundred twenty".