19794492 has 36 divisors (see below), whose sum is σ = 51653056. Its totient is φ = 6384960.

The previous prime is 19794479. The next prime is 19794497. The reversal of 19794492 is 29449791.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19794497) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7753 + ... + 9984.

Almost surely, 2^19794492 is an apocalyptic number.

19794492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19794492 is an abundant number, since it is smaller than the sum of its proper divisors (31858564).

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

19794492 is a wasteful number, since it uses less digits than its factorization.

19794492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17778 (or 17773 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 19794492 is about 4449.1001337349. The cubic root of 19794492 is about 270.5088347002.

The spelling of 19794492 in words is "nineteen million, seven hundred ninety-four thousand, four hundred ninety-two".