20710344 has 32 divisors (see below), whose sum is σ = 51891840. Its totient is φ = 6888000.

The previous prime is 20710331. The next prime is 20710367. The reversal of 20710344 is 44301702.

It is a self number, because there is not a number n which added to its sum of digits gives 20710344.

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, 16209 + ... + 17439.

It is an arithmetic number, because the mean of its divisors is an integer number (1621620).

Almost surely, 2^20710344 is an apocalyptic number.

20710344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20710344 is an abundant number, since it is smaller than the sum of its proper divisors (31181496).

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

20710344 is a wasteful number, since it uses less digits than its factorization.

20710344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941 (or 1937 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 20710344 is about 4550.8618963884. The cubic root of 20710344 is about 274.6180659393.

The spelling of 20710344 in words is "twenty million, seven hundred ten thousand, three hundred forty-four".