19494768 has 40 divisors (see below), whose sum is σ = 50528016. Its totient is φ = 6476800.

The previous prime is 19494763. The next prime is 19494793. The reversal of 19494768 is 86749491.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19494763) 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 7 ways as a sum of consecutive naturals, for example, 21688 + ... + 22568.

Almost surely, 2^19494768 is an apocalyptic number.

It is an amenable number.

19494768 is an abundant number, since it is smaller than the sum of its proper divisors (31033248).

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

19494768 is a wasteful number, since it uses less digits than its factorization.

19494768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353 (or 1347 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 19494768 is about 4415.2879860775. The cubic root of 19494768 is about 269.1365558285.

The spelling of 19494768 in words is "nineteen million, four hundred ninety-four thousand, seven hundred sixty-eight".