20043774 has 20 divisors (see below), whose sum is σ = 44913264. Its totient is φ = 6681204.

The previous prime is 20043773. The next prime is 20043781. The reversal of 20043774 is 47734002.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 61702 + ... + 62025.

Almost surely, 2^20043774 is an apocalyptic number.

20043774 is an abundant number, since it is smaller than the sum of its proper divisors (24869490).

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

20043774 is a wasteful number, since it uses less digits than its factorization.

20043774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123741 (or 123732 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 20043774 is about 4477.0273619892. The cubic root of 20043774 is about 271.6396522165.

Adding to 20043774 its reverse (47734002), we get a palindrome (67777776).

It can be divided in two parts, 2004 and 3774, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 20043774 in words is "twenty million, forty-three thousand, seven hundred seventy-four".