7251480 has 48 divisors (see below), whose sum is σ = 23568480. Its totient is φ = 1933632.

The previous prime is 7251397. The next prime is 7251481. The reversal of 7251480 is 841527.

7251480 is a `hidden beast` number, since 72 + 514 + 80 = 666.

7251480 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×7251480³ (a number of 22 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7251481) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9712 + ... + 10431.

It is an arithmetic number, because the mean of its divisors is an integer number (491010).

Almost surely, 2^7251480 is an apocalyptic number.

It is an amenable number.

7251480 is an abundant number, since it is smaller than the sum of its proper divisors (16317000).

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

7251480 is a wasteful number, since it uses less digits than its factorization.

7251480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20160 (or 20153 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 7251480 is about 2692.8572186434. The cubic root of 7251480 is about 193.5570010145.

The spelling of 7251480 in words is "seven million, two hundred fifty-one thousand, four hundred eighty".