7481040 has 160 divisors (see below), whose sum is σ = 27307776. Its totient is φ = 1658880.

The previous prime is 7481021. The next prime is 7481051. The reversal of 7481040 is 401847.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 7481040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102444 + ... + 102516.

Almost surely, 2^7481040 is an apocalyptic number.

7481040 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7481040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13653888).

7481040 is an abundant number, since it is smaller than the sum of its proper divisors (19826736).

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

7481040 is a wasteful number, since it uses less digits than its factorization.

7481040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 7481040 is about 2735.1489904574. The cubic root of 7481040 is about 195.5782964448.

Adding to 7481040 its reverse (401847), we get a palindrome (7882887).

The spelling of 7481040 in words is "seven million, four hundred eighty-one thousand, forty".