7481340 has 72 divisors (see below), whose sum is σ = 22997520. Its totient is φ = 1968384.

The previous prime is 7481339. The next prime is 7481351. The reversal of 7481340 is 431847.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15787 + ... + 16253.

It is an arithmetic number, because the mean of its divisors is an integer number (319410).

Almost surely, 2^7481340 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 7481340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11498760).

7481340 is an abundant number, since it is smaller than the sum of its proper divisors (15516180).

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

7481340 is a wasteful number, since it uses less digits than its factorization.

7481340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 566 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 7481340 is about 2735.2038315270. The cubic root of 7481340 is about 195.5809107294.

The spelling of 7481340 in words is "seven million, four hundred eighty-one thousand, three hundred forty".