20743344 has 40 divisors (see below), whose sum is σ = 59542320. Its totient is φ = 6914304.

The previous prime is 20743337. The next prime is 20743357. The reversal of 20743344 is 44334702.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23577 + ... + 24440.

It is an arithmetic number, because the mean of its divisors is an integer number (1488558).

Almost surely, 2^20743344 is an apocalyptic number.

20743344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20743344 is an abundant number, since it is smaller than the sum of its proper divisors (38798976).

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

20743344 is a wasteful number, since it uses less digits than its factorization.

20743344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48034 (or 48022 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 20743344 is about 4554.4861400601. The cubic root of 20743344 is about 274.7638479548.

The spelling of 20743344 in words is "twenty million, seven hundred forty-three thousand, three hundred forty-four".