20343612 has 24 divisors (see below), whose sum is σ = 48178816. Its totient is φ = 6679728.

The previous prime is 20343607. The next prime is 20343619. The reversal of 20343612 is 21634302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343619) 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, 11848 + ... + 13455.

Almost surely, 2^20343612 is an apocalyptic number.

It is an amenable number.

20343612 is an abundant number, since it is smaller than the sum of its proper divisors (27835204).

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

20343612 is a wasteful number, since it uses less digits than its factorization.

20343612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25377 (or 25375 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 20343612 is about 4510.3893401790. The cubic root of 20343612 is about 272.9874539713.

Adding to 20343612 its reverse (21634302), we get a palindrome (41977914).

The spelling of 20343612 in words is "twenty million, three hundred forty-three thousand, six hundred twelve".