102404449 has 16 divisors (see below), whose sum is σ = 118510720. Its totient is φ = 86676480.

The previous prime is 102404437. The next prime is 102404453. The reversal of 102404449 is 944404201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102404449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102404479) 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 15 ways as a sum of consecutive naturals, for example, 309214 + ... + 309544.

It is an arithmetic number, because the mean of its divisors is an integer number (7406920).

Almost surely, 2^102404449 is an apocalyptic number.

It is an amenable number.

102404449 is a deficient number, since it is larger than the sum of its proper divisors (16106271).

102404449 is a wasteful number, since it uses less digits than its factorization.

102404449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 102404449 is about 10119.5083378591. The cubic root of 102404449 is about 467.8496135133.

The spelling of 102404449 in words is "one hundred two million, four hundred four thousand, four hundred forty-nine".