7481480 has 32 divisors (see below), whose sum is σ = 17155800. Its totient is φ = 2935296.

The previous prime is 7481407. The next prime is 7481491. The reversal of 7481480 is 841847.

It can be written as a sum of positive squares in 4 ways, for example, as 5189284 + 2292196 = 2278^2 + 1514^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356 + ... + 3884.

Almost surely, 2^7481480 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 7481480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8577900).

7481480 is an abundant number, since it is smaller than the sum of its proper divisors (9674320).

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

7481480 is a wasteful number, since it uses less digits than its factorization.

7481480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3593 (or 3589 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 7481480 is about 2735.2294236499. The cubic root of 7481480 is about 195.5821307050.

The spelling of 7481480 in words is "seven million, four hundred eighty-one thousand, four hundred eighty".