7488540 has 36 divisors (see below), whose sum is σ = 22715784. Its totient is φ = 1996896.

The previous prime is 7488539. The next prime is 7488553. The reversal of 7488540 is 458847.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7488495 and 7488504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20622 + ... + 20981.

It is an arithmetic number, because the mean of its divisors is an integer number (630994).

Almost surely, 2^7488540 is an apocalyptic number.

It is an amenable number.

7488540 is an abundant number, since it is smaller than the sum of its proper divisors (15227244).

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

7488540 is a wasteful number, since it uses less digits than its factorization.

7488540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41618 (or 41613 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 7488540 is about 2736.5196874863. The cubic root of 7488540 is about 195.6436326062.

The spelling of 7488540 in words is "seven million, four hundred eighty-eight thousand, five hundred forty".