7650240 has 112 divisors (see below), whose sum is σ = 26200608. Its totient is φ = 1880064.

The previous prime is 7650239. The next prime is 7650241. The reversal of 7650240 is 420567.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7650239) and next prime (7650241).

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7650240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7650241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12174 + ... + 12786.

It is an arithmetic number, because the mean of its divisors is an integer number (233934).

Almost surely, 2^7650240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7650240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13100304).

7650240 is an abundant number, since it is smaller than the sum of its proper divisors (18550368).

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

7650240 is a wasteful number, since it uses less digits than its factorization.

7650240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 7650240 is about 2765.9067229392. The cubic root of 7650240 is about 197.0417941508.

The spelling of 7650240 in words is "seven million, six hundred fifty thousand, two hundred forty".