20623412 has 24 divisors (see below), whose sum is σ = 37140096. Its totient is φ = 10015488.

The previous prime is 20623411. The next prime is 20623439. The reversal of 20623412 is 21432602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20623411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30308 + ... + 30980.

It is an arithmetic number, because the mean of its divisors is an integer number (1547504).

Almost surely, 2^20623412 is an apocalyptic number.

It is an amenable number.

20623412 is a deficient number, since it is larger than the sum of its proper divisors (16516684).

20623412 is a wasteful number, since it uses less digits than its factorization.

20623412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20623412 is about 4541.3006947349. The cubic root of 20623412 is about 274.2332891599.

The spelling of 20623412 in words is "twenty million, six hundred twenty-three thousand, four hundred twelve".