7264840 has 96 divisors (see below), whose sum is σ = 19152000. Its totient is φ = 2471040.

The previous prime is 7264823. The next prime is 7264841. The reversal of 7264840 is 484627.

It is not an unprimeable number, because it can be changed into a prime (7264841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91921 + ... + 91999.

It is an arithmetic number, because the mean of its divisors is an integer number (199500).

Almost surely, 2^7264840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7264840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9576000).

7264840 is an abundant number, since it is smaller than the sum of its proper divisors (11887160).

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

7264840 is a wasteful number, since it uses less digits than its factorization.

7264840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 7264840 is about 2695.3367136594. The cubic root of 7264840 is about 193.6757967670.

The spelling of 7264840 in words is "seven million, two hundred sixty-four thousand, eight hundred forty".