20343408 has 40 divisors (see below), whose sum is σ = 54841728. Its totient is φ = 6485952.

The previous prime is 20343403. The next prime is 20343419. The reversal of 20343408 is 80434302.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8110 + ... + 10317.

Almost surely, 2^20343408 is an apocalyptic number.

It is an amenable number.

20343408 is an abundant number, since it is smaller than the sum of its proper divisors (34498320).

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

20343408 is a wasteful number, since it uses less digits than its factorization.

20343408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18461 (or 18455 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 20343408 is about 4510.3667256666. The cubic root of 20343408 is about 272.9865414879.

The spelling of 20343408 in words is "twenty million, three hundred forty-three thousand, four hundred eight".