7391488 has 36 divisors (see below), whose sum is σ = 15896188. Its totient is φ = 3409920.

The previous prime is 7391473. The next prime is 7391519. The reversal of 7391488 is 8841937.

It can be written as a sum of positive squares in 2 ways, for example, as 2930944 + 4460544 = 1712^2 + 2112^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7391488.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2218 + ... + 4438.

Almost surely, 2^7391488 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 7391488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7948094).

7391488 is an abundant number, since it is smaller than the sum of its proper divisors (8504700).

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

7391488 is a wasteful number, since it uses less digits than its factorization.

7391488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250 (or 2236 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 7391488 is about 2718.7291148623. The cubic root of 7391488 is about 194.7947698337.

The spelling of 7391488 in words is "seven million, three hundred ninety-one thousand, four hundred eighty-eight".