19799124 has 12 divisors (see below), whose sum is σ = 46197984. Its totient is φ = 6599704.

The previous prime is 19799123. The next prime is 19799137. The reversal of 19799124 is 42199791.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×19799124² = 784010622334752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19799123) 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 3 ways as a sum of consecutive naturals, for example, 824952 + ... + 824975.

It is an arithmetic number, because the mean of its divisors is an integer number (3849832).

Almost surely, 2^19799124 is an apocalyptic number.

It is an amenable number.

19799124 is an abundant number, since it is smaller than the sum of its proper divisors (26398860).

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

19799124 is a wasteful number, since it uses less digits than its factorization.

19799124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649934 (or 1649932 counting only the distinct ones).

The product of its digits is 40824, while the sum is 42.

The square root of 19799124 is about 4449.6206579887. The cubic root of 19799124 is about 270.5299331485.

The spelling of 19799124 in words is "nineteen million, seven hundred ninety-nine thousand, one hundred twenty-four".