20091344 has 40 divisors (see below), whose sum is σ = 47913600. Its totient is φ = 7947648.

The previous prime is 20091311. The next prime is 20091347. The reversal of 20091344 is 44319002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20091347) 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, 5444 + ... + 8355.

It is an arithmetic number, because the mean of its divisors is an integer number (1197840).

Almost surely, 2^20091344 is an apocalyptic number.

It is an amenable number.

20091344 is an abundant number, since it is smaller than the sum of its proper divisors (27822256).

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

20091344 is a wasteful number, since it uses less digits than its factorization.

20091344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13827 (or 13821 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 20091344 is about 4482.3368905070. The cubic root of 20091344 is about 271.8543770678.

The spelling of 20091344 in words is "twenty million, ninety-one thousand, three hundred forty-four".