23103444 has 48 divisors (see below), whose sum is σ = 66351488. Its totient is φ = 6092928.

The previous prime is 23103439. The next prime is 23103467. The reversal of 23103444 is 44430132.

It is a super-2 number, since 2×23103444² = 1067538249322272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 23103444.

It is a congruent number.

It is an unprimeable number.

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, 9487 + ... + 11670.

Almost surely, 2^23103444 is an apocalyptic number.

It is an amenable number.

23103444 is an abundant number, since it is smaller than the sum of its proper divisors (43248044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23103444 is a wasteful number, since it uses less digits than its factorization.

23103444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21184 (or 21182 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 23103444 is about 4806.6042067139. The cubic root of 23103444 is about 284.8124096400.

Adding to 23103444 its reverse (44430132), we get a palindrome (67533576).

The spelling of 23103444 in words is "twenty-three million, one hundred three thousand, four hundred forty-four".