7252740 has 180 divisors, whose sum is σ = 25684428. Its totient is φ = 1710720.

The previous prime is 7252733. The next prime is 7252771. The reversal of 7252740 is 472527.

It can be written as a sum of positive squares in 2 ways, for example, as 4743684 + 2509056 = 2178^2 + 1584^2 .

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 196002 + ... + 196038.

Almost surely, 2^7252740 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 7252740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12842214).

7252740 is an abundant number, since it is smaller than the sum of its proper divisors (18431688).

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

7252740 is a wasteful number, since it uses less digits than its factorization.

7252740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 7252740 is about 2693.0911607296. The cubic root of 7252740 is about 193.5682110340.

The spelling of 7252740 in words is "seven million, two hundred fifty-two thousand, seven hundred forty".