20791412 has 6 divisors (see below), whose sum is σ = 36384978. Its totient is φ = 10395704.

The previous prime is 20791411. The next prime is 20791451. The reversal of 20791412 is 21419702.

It can be written as a sum of positive squares in only one way, i.e., 20557156 + 234256 = 4534^2 + 484^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20791411) 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 as a sum of consecutive naturals, namely, 2598923 + ... + 2598930.

It is an arithmetic number, because the mean of its divisors is an integer number (6064163).

Almost surely, 2^20791412 is an apocalyptic number.

It is an amenable number.

20791412 is a deficient number, since it is larger than the sum of its proper divisors (15593566).

20791412 is a wasteful number, since it uses less digits than its factorization.

20791412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5197857 (or 5197855 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 20791412 is about 4559.7600814078. The cubic root of 20791412 is about 274.9759185524.

It can be divided in two parts, 207 and 91412, that added together give a palindrome (91619).

The spelling of 20791412 in words is "twenty million, seven hundred ninety-one thousand, four hundred twelve".