20746086 has 16 divisors (see below), whose sum is σ = 43933104. Its totient is φ = 6508544.

The previous prime is 20746067. The next prime is 20746091. The reversal of 20746086 is 68064702.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101595 + ... + 101798.

It is an arithmetic number, because the mean of its divisors is an integer number (2745819).

Almost surely, 2^20746086 is an apocalyptic number.

20746086 is an abundant number, since it is smaller than the sum of its proper divisors (23187018).

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

20746086 is a wasteful number, since it uses less digits than its factorization.

20746086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203415.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 20746086 is about 4554.7871519973. The cubic root of 20746086 is about 274.7759541558.

The spelling of 20746086 in words is "twenty million, seven hundred forty-six thousand, eighty-six".