20123364 has 12 divisors (see below), whose sum is σ = 46954544. Its totient is φ = 6707784.

The previous prime is 20123347. The next prime is 20123377. The reversal of 20123364 is 46332102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 20123364.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838462 + ... + 838485.

Almost surely, 2^20123364 is an apocalyptic number.

It is an amenable number.

20123364 is an abundant number, since it is smaller than the sum of its proper divisors (26831180).

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

20123364 is a wasteful number, since it uses less digits than its factorization.

20123364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676954 (or 1676952 counting only the distinct ones).

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

The square root of 20123364 is about 4485.9072660946. The cubic root of 20123364 is about 271.9987204380.

Adding to 20123364 its reverse (46332102), we get a palindrome (66455466).

The spelling of 20123364 in words is "twenty million, one hundred twenty-three thousand, three hundred sixty-four".