20343960 has 384 divisors, whose sum is σ = 88058880. Its totient is φ = 4105728.

The previous prime is 20343959. The next prime is 20343971. The reversal of 20343960 is 6934302.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 884509 + ... + 884531.

It is an arithmetic number, because the mean of its divisors is an integer number (229320).

Almost surely, 2^20343960 is an apocalyptic number.

20343960 is a gapful number since it is divisible by the number (20) 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 20343960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44029440).

20343960 is an abundant number, since it is smaller than the sum of its proper divisors (67714920).

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

20343960 is a wasteful number, since it uses less digits than its factorization.

20343960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 20343960 is about 4510.4279176149. The cubic root of 20343960 is about 272.9890105466.

The spelling of 20343960 in words is "twenty million, three hundred forty-three thousand, nine hundred sixty".