7265540 has 12 divisors (see below), whose sum is σ = 15257676. Its totient is φ = 2906208.

The previous prime is 7265537. The next prime is 7265549. The reversal of 7265540 is 455627.

It can be written as a sum of positive squares in 2 ways, for example, as 4251844 + 3013696 = 2062^2 + 1736^2 .

It is not an unprimeable number, because it can be changed into a prime (7265549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181619 + ... + 181658.

It is an arithmetic number, because the mean of its divisors is an integer number (1271473).

Almost surely, 2^7265540 is an apocalyptic number.

It is an amenable number.

7265540 is an abundant number, since it is smaller than the sum of its proper divisors (7992136).

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

7265540 is a wasteful number, since it uses less digits than its factorization.

7265540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363286 (or 363284 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 7265540 is about 2695.4665644374. The cubic root of 7265540 is about 193.6820170786.

The spelling of 7265540 in words is "seven million, two hundred sixty-five thousand, five hundred forty".