102444939 has 8 divisors (see below), whose sum is σ = 151770320. Its totient is φ = 68296608.

The previous prime is 102444899. The next prime is 102444949. The reversal of 102444939 is 939444201.

It is not a de Polignac number, because 102444939 - 2⁹ = 102444427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102444949) 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, 1897102 + ... + 1897155.

It is an arithmetic number, because the mean of its divisors is an integer number (18971290).

Almost surely, 2^102444939 is an apocalyptic number.

102444939 is a deficient number, since it is larger than the sum of its proper divisors (49325381).

102444939 is an equidigital number, since it uses as much as digits as its factorization.

102444939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3794266 (or 3794260 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 102444939 is about 10121.5087314096. The cubic root of 102444939 is about 467.9112668721.

The spelling of 102444939 in words is "one hundred two million, four hundred forty-four thousand, nine hundred thirty-nine".