20001612 has 24 divisors (see below), whose sum is σ = 46774336. Its totient is φ = 6652368.

The previous prime is 20001557. The next prime is 20001613. The reversal of 20001612 is 21610002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (20001613) 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, 4683 + ... + 7869.

Almost surely, 2^20001612 is an apocalyptic number.

It is an amenable number.

20001612 is an abundant number, since it is smaller than the sum of its proper divisors (26772724).

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

20001612 is a wasteful number, since it uses less digits than its factorization.

20001612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3717 (or 3715 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 20001612 is about 4472.3161784471. The cubic root of 20001612 is about 271.4490541989.

Adding to 20001612 its reverse (21610002), we get a palindrome (41611614).

It can be divided in two parts, 200016 and 12, that added together give a triangular number (200028 = T₆₃₂).

The spelling of 20001612 in words is "twenty million, one thousand, six hundred twelve".