4449915 has 12 divisors (see below), whose sum is σ = 7713264. Its totient is φ = 2373264.

The previous prime is 4449901. The next prime is 4449919. The reversal of 4449915 is 5199444.

It is a happy number.

It is not a de Polignac number, because 4449915 - 2⁴ = 4449899 is a prime.

4449915 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4449915.

It is not an unprimeable number, because it can be changed into a prime (4449919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49399 + ... + 49488.

It is an arithmetic number, because the mean of its divisors is an integer number (642772).

Almost surely, 2^4449915 is an apocalyptic number.

4449915 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4449915 is a deficient number, since it is larger than the sum of its proper divisors (3263349).

4449915 is a wasteful number, since it uses less digits than its factorization.

4449915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98898 (or 98895 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 4449915 is about 2109.4821639445. The cubic root of 4449915 is about 164.4815683811.

The spelling of 4449915 in words is "four million, four hundred forty-nine thousand, nine hundred fifteen".