7229540 has 24 divisors (see below), whose sum is σ = 15507072. Its totient is φ = 2829920.

The previous prime is 7229531. The next prime is 7229569. The reversal of 7229540 is 459227.

It is a super-2 number, since 2×7229540² = 104532497223200, which contains 22 as substring.

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, 2906 + ... + 4785.

It is an arithmetic number, because the mean of its divisors is an integer number (646128).

Almost surely, 2^7229540 is an apocalyptic number.

It is an amenable number.

7229540 is an abundant number, since it is smaller than the sum of its proper divisors (8277532).

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

7229540 is a wasteful number, since it uses less digits than its factorization.

7229540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7747 (or 7745 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 7229540 is about 2688.7803926688. The cubic root of 7229540 is about 193.3615958154.

The spelling of 7229540 in words is "seven million, two hundred twenty-nine thousand, five hundred forty".