20094138 has 24 divisors (see below), whose sum is σ = 44942976. Its totient is φ = 6481800.

The previous prime is 20094133. The next prime is 20094143. The reversal of 20094138 is 83149002.

It is an interprime number because it is at equal distance from previous prime (20094133) and next prime (20094143).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20094133) 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 in 11 ways as a sum of consecutive naturals, for example, 17448 + ... + 18563.

It is an arithmetic number, because the mean of its divisors is an integer number (1872624).

Almost surely, 2^20094138 is an apocalyptic number.

20094138 is an abundant number, since it is smaller than the sum of its proper divisors (24848838).

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

20094138 is a wasteful number, since it uses less digits than its factorization.

20094138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36050 (or 36047 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 20094138 is about 4482.6485474550. The cubic root of 20094138 is about 271.8669782810.

The spelling of 20094138 in words is "twenty million, ninety-four thousand, one hundred thirty-eight".