7272558 has 16 divisors (see below), whose sum is σ = 16161360. Its totient is φ = 2424168.

The previous prime is 7272557. The next prime is 7272563. The reversal of 7272558 is 8552727.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7272557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67285 + ... + 67392.

It is an arithmetic number, because the mean of its divisors is an integer number (1010085).

Almost surely, 2^7272558 is an apocalyptic number.

7272558 is an abundant number, since it is smaller than the sum of its proper divisors (8888802).

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

7272558 is a wasteful number, since it uses less digits than its factorization.

7272558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134688 (or 134682 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 7272558 is about 2696.7680656668. The cubic root of 7272558 is about 193.7443580737.

The spelling of 7272558 in words is "seven million, two hundred seventy-two thousand, five hundred fifty-eight".