7408881 has 8 divisors (see below), whose sum is σ = 10976160. Its totient is φ = 4939236.

The previous prime is 7408861. The next prime is 7408883. The reversal of 7408881 is 1888047.

It is a de Polignac number, because none of the positive numbers 2^k-7408881 is a prime.

It is a super-2 number, since 2×7408881² = 109783035344322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7408883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137175 + ... + 137228.

It is an arithmetic number, because the mean of its divisors is an integer number (1372020).

Almost surely, 2^7408881 is an apocalyptic number.

It is an amenable number.

7408881 is a deficient number, since it is larger than the sum of its proper divisors (3567279).

7408881 is a wasteful number, since it uses less digits than its factorization.

7408881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274412 (or 274406 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 7408881 is about 2721.9259725422. The cubic root of 7408881 is about 194.9474414564.

The spelling of 7408881 in words is "seven million, four hundred eight thousand, eight hundred eighty-one".