20074286 has 4 divisors (see below), whose sum is σ = 30111432. Its totient is φ = 10037142.

The previous prime is 20074283. The next prime is 20074303. The reversal of 20074286 is 68247002.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20074283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5018570 + ... + 5018573.

It is an arithmetic number, because the mean of its divisors is an integer number (7527858).

Almost surely, 2^20074286 is an apocalyptic number.

20074286 is a deficient number, since it is larger than the sum of its proper divisors (10037146).

20074286 is a wasteful number, since it uses less digits than its factorization.

20074286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10037145.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 20074286 is about 4480.4336843658. The cubic root of 20074286 is about 271.7774184703. Note that the first 3 decimals are identical.

The spelling of 20074286 in words is "twenty million, seventy-four thousand, two hundred eighty-six".