7440264 has 48 divisors (see below), whose sum is σ = 21703500. Its totient is φ = 2289024.

The previous prime is 7440263. The next prime is 7440289. The reversal of 7440264 is 4620447.

It can be written as a sum of positive squares in 2 ways, for example, as 7128900 + 311364 = 2670^2 + 558^2 .

It is not an unprimeable number, because it can be changed into a prime (7440263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3039 + ... + 4910.

Almost surely, 2^7440264 is an apocalyptic number.

It is an amenable number.

7440264 is an abundant number, since it is smaller than the sum of its proper divisors (14263236).

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

7440264 is a wasteful number, since it uses less digits than its factorization.

7440264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7974 (or 7967 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 7440264 is about 2727.6847325158. The cubic root of 7440264 is about 195.2223105602. Note that the first 3 decimals are identical.

The spelling of 7440264 in words is "seven million, four hundred forty thousand, two hundred sixty-four".