4399881 has 8 divisors (see below), whose sum is σ = 5918880. Its totient is φ = 2907072.

The previous prime is 4399873. The next prime is 4399883. The reversal of 4399881 is 1889934.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4399881 - 2³ = 4399873 is a prime.

It is a super-2 number, since 2×4399881² = 38717905628322, which contains 22 as substring.

4399881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4399883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6151 + ... + 6828.

It is an arithmetic number, because the mean of its divisors is an integer number (739860).

Almost surely, 2^4399881 is an apocalyptic number.

It is an amenable number.

4399881 is a deficient number, since it is larger than the sum of its proper divisors (1518999).

4399881 is a wasteful number, since it uses less digits than its factorization.

4399881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13095.

The product of its digits is 62208, while the sum is 42.

The square root of 4399881 is about 2097.5893306365. The cubic root of 4399881 is about 163.8627768457.

The spelling of 4399881 in words is "four million, three hundred ninety-nine thousand, eight hundred eighty-one".