7400881 has 4 divisors (see below), whose sum is σ = 7433712. Its totient is φ = 7368052.

The previous prime is 7400879. The next prime is 7400891. The reversal of 7400881 is 1880047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7400881 - 2¹ = 7400879 is a prime.

It is a super-2 number, since 2×7400881² = 109546079152322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7400821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16075 + ... + 16528.

It is an arithmetic number, because the mean of its divisors is an integer number (1858428).

Almost surely, 2^7400881 is an apocalyptic number.

It is an amenable number.

7400881 is a deficient number, since it is larger than the sum of its proper divisors (32831).

7400881 is a wasteful number, since it uses less digits than its factorization.

7400881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32830.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 7400881 is about 2720.4560279483. The cubic root of 7400881 is about 194.8772490659.

It can be divided in two parts, 7400 and 881, that added together give a square (8281 = 91²).

The spelling of 7400881 in words is "seven million, four hundred thousand, eight hundred eighty-one".