20344260 has 24 divisors (see below), whose sum is σ = 56964096. Its totient is φ = 5425120.

The previous prime is 20344249. The next prime is 20344267. The reversal of 20344260 is 6244302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169476 + ... + 169595.

It is an arithmetic number, because the mean of its divisors is an integer number (2373504).

Almost surely, 2^20344260 is an apocalyptic number.

20344260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20344260 is an abundant number, since it is smaller than the sum of its proper divisors (36619836).

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

20344260 is a wasteful number, since it uses less digits than its factorization.

20344260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339083 (or 339081 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 20344260 is about 4510.4611737604. The cubic root of 20344260 is about 272.9903524077.

Adding to 20344260 its reverse (6244302), we get a palindrome (26588562).

The spelling of 20344260 in words is "twenty million, three hundred forty-four thousand, two hundred sixty".