7265220 has 48 divisors (see below), whose sum is σ = 21416640. Its totient is φ = 1835136.

The previous prime is 7265207. The next prime is 7265221. The reversal of 7265220 is 225627.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7265221) 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, 2047 + ... + 4326.

It is an arithmetic number, because the mean of its divisors is an integer number (446180).

Almost surely, 2^7265220 is an apocalyptic number.

It is an amenable number.

7265220 is an abundant number, since it is smaller than the sum of its proper divisors (14151420).

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

7265220 is a wasteful number, since it uses less digits than its factorization.

7265220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6404 (or 6402 counting only the distinct ones).

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

The square root of 7265220 is about 2695.4072048579. The cubic root of 7265220 is about 193.6791735572.

The spelling of 7265220 in words is "seven million, two hundred sixty-five thousand, two hundred twenty".