20091094 has 12 divisors (see below), whose sum is σ = 31807404. Its totient is φ = 9516492.

The previous prime is 20091067. The next prime is 20091101. The reversal of 20091094 is 49019002.

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 13192 + ... + 14635.

It is an arithmetic number, because the mean of its divisors is an integer number (2650617).

Almost surely, 2^20091094 is an apocalyptic number.

20091094 is a deficient number, since it is larger than the sum of its proper divisors (11716310).

20091094 is a wasteful number, since it uses less digits than its factorization.

20091094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27867 (or 27848 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 20091094 is about 4482.3090031813. The cubic root of 20091094 is about 271.8532494865.

The spelling of 20091094 in words is "twenty million, ninety-one thousand, ninety-four".