113603444 has 6 divisors (see below), whose sum is σ = 198806034. Its totient is φ = 56801720.

The previous prime is 113603423. The next prime is 113603447. The reversal of 113603444 is 444306311.

It can be written as a sum of positive squares in only one way, i.e., 80102500 + 33500944 = 8950^2 + 5788^2 .

It is a super-2 number, since 2×113603444² = 25811484977322272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113603447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14200427 + ... + 14200434.

It is an arithmetic number, because the mean of its divisors is an integer number (33134339).

Almost surely, 2^113603444 is an apocalyptic number.

It is an amenable number.

113603444 is a deficient number, since it is larger than the sum of its proper divisors (85202590).

113603444 is a wasteful number, since it uses less digits than its factorization.

113603444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28400865 (or 28400863 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 113603444 is about 10658.4916381259. The cubic root of 113603444 is about 484.3178762409.

Adding to 113603444 its reverse (444306311), we get a palindrome (557909755).

The spelling of 113603444 in words is "one hundred thirteen million, six hundred three thousand, four hundred forty-four".