20002344 has 48 divisors (see below), whose sum is σ = 51841920. Its totient is φ = 6431040.

The previous prime is 20002337. The next prime is 20002361. The reversal of 20002344 is 44320002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19689 + ... + 20679.

It is an arithmetic number, because the mean of its divisors is an integer number (1080040).

Almost surely, 2^20002344 is an apocalyptic number.

20002344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20002344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25920960).

20002344 is an abundant number, since it is smaller than the sum of its proper divisors (31839576).

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

20002344 is a wasteful number, since it uses less digits than its factorization.

20002344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058 (or 1025 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 20002344 is about 4472.3980144884. The cubic root of 20002344 is about 271.4523655701.

Adding to 20002344 its reverse (44320002), we get a palindrome (64322346).

The spelling of 20002344 in words is "twenty million, two thousand, three hundred forty-four".