7264540 has 24 divisors (see below), whose sum is σ = 15748992. Its totient is φ = 2811840.

The previous prime is 7264531. The next prime is 7264553. The reversal of 7264540 is 454627.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7264499 and 7264508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5239 + ... + 6478.

It is an arithmetic number, because the mean of its divisors is an integer number (656208).

Almost surely, 2^7264540 is an apocalyptic number.

It is an amenable number.

7264540 is an abundant number, since it is smaller than the sum of its proper divisors (8484452).

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

7264540 is a wasteful number, since it uses less digits than its factorization.

7264540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11757 (or 11755 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 7264540 is about 2695.2810614109. The cubic root of 7264540 is about 193.6731307969.

The spelling of 7264540 in words is "seven million, two hundred sixty-four thousand, five hundred forty".