7240656 has 20 divisors (see below), whose sum is σ = 18705152. Its totient is φ = 2413536.

The previous prime is 7240643. The next prime is 7240663. The reversal of 7240656 is 6560427.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

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, 75376 + ... + 75471.

Almost surely, 2^7240656 is an apocalyptic number.

It is an amenable number.

7240656 is an abundant number, since it is smaller than the sum of its proper divisors (11464496).

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

7240656 is a wasteful number, since it uses less digits than its factorization.

7240656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150858 (or 150852 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 7240656 is about 2690.8467068936. The cubic root of 7240656 is about 193.4606480746.

The spelling of 7240656 in words is "seven million, two hundred forty thousand, six hundred fifty-six".