19494164 has 12 divisors (see below), whose sum is σ = 35215488. Its totient is φ = 9432600.

The previous prime is 19494149. The next prime is 19494199. The reversal of 19494164 is 46149491.

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 3 ways as a sum of consecutive naturals, for example, 78482 + ... + 78729.

It is an arithmetic number, because the mean of its divisors is an integer number (2934624).

Almost surely, 2^19494164 is an apocalyptic number.

It is an amenable number.

19494164 is a deficient number, since it is larger than the sum of its proper divisors (15721324).

19494164 is a wasteful number, since it uses less digits than its factorization.

19494164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157246 (or 157244 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 19494164 is about 4415.2195868382. The cubic root of 19494164 is about 269.1337762766.

The spelling of 19494164 in words is "nineteen million, four hundred ninety-four thousand, one hundred sixty-four".