20123944 has 24 divisors (see below), whose sum is σ = 38262510. Its totient is φ = 9922304.

The previous prime is 20123927. The next prime is 20123959. The reversal of 20123944 is 44932102.

It can be written as a sum of positive squares in 3 ways, for example, as 11303044 + 8820900 = 3362^2 + 2970^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102054 + ... + 102250.

Almost surely, 2^20123944 is an apocalyptic number.

It is an amenable number.

20123944 is a deficient number, since it is larger than the sum of its proper divisors (18138566).

20123944 is a wasteful number, since it uses less digits than its factorization.

20123944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 20123944 is about 4485.9719125291. The cubic root of 20123944 is about 272.0013336151.

The spelling of 20123944 in words is "twenty million, one hundred twenty-three thousand, nine hundred forty-four".