19494093 has 16 divisors (see below), whose sum is σ = 26734400. Its totient is φ = 12628224.

The previous prime is 19494073. The next prime is 19494103. The reversal of 19494093 is 39049491.

It is not a de Polignac number, because 19494093 - 2⁶ = 19494029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19494043) 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 15 ways as a sum of consecutive naturals, for example, 44805 + ... + 45237.

It is an arithmetic number, because the mean of its divisors is an integer number (1670900).

Almost surely, 2^19494093 is an apocalyptic number.

It is an amenable number.

19494093 is a deficient number, since it is larger than the sum of its proper divisors (7240307).

19494093 is a wasteful number, since it uses less digits than its factorization.

19494093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 19494093 is about 4415.2115464607. The cubic root of 19494093 is about 269.1334495375.

The spelling of 19494093 in words is "nineteen million, four hundred ninety-four thousand, ninety-three".