103439444 has 6 divisors (see below), whose sum is σ = 181019034. Its totient is φ = 51719720.

The previous prime is 103439437. The next prime is 103439447. The reversal of 103439444 is 444934301.

It can be written as a sum of positive squares in only one way, i.e., 93122500 + 10316944 = 9650^2 + 3212^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 103439444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103439447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12929927 + ... + 12929934.

It is an arithmetic number, because the mean of its divisors is an integer number (30169839).

Almost surely, 2^103439444 is an apocalyptic number.

It is an amenable number.

103439444 is a deficient number, since it is larger than the sum of its proper divisors (77579590).

103439444 is a wasteful number, since it uses less digits than its factorization.

103439444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25859865 (or 25859863 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 103439444 is about 10170.5183742030. The cubic root of 103439444 is about 469.4205080749.

The spelling of 103439444 in words is "one hundred three million, four hundred thirty-nine thousand, four hundred forty-four".