19910094 has 16 divisors (see below), whose sum is σ = 42162768. Its totient is φ = 6246272.

The previous prime is 19910089. The next prime is 19910113. The reversal of 19910094 is 49001991.

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, 97497 + ... + 97700.

It is an arithmetic number, because the mean of its divisors is an integer number (2635173).

Almost surely, 2^19910094 is an apocalyptic number.

19910094 is an abundant number, since it is smaller than the sum of its proper divisors (22252674).

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

19910094 is a wasteful number, since it uses less digits than its factorization.

19910094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195219.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 19910094 is about 4462.0728366982. The cubic root of 19910094 is about 271.0344132803.

The spelling of 19910094 in words is "nineteen million, nine hundred ten thousand, ninety-four".