19929084 has 36 divisors (see below), whose sum is σ = 54094824. Its totient is φ = 5693856.

The previous prime is 19929067. The next prime is 19929089. The reversal of 19929084 is 48092991.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19929089) 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 11 ways as a sum of consecutive naturals, for example, 16359 + ... + 17534.

It is an arithmetic number, because the mean of its divisors is an integer number (1502634).

Almost surely, 2^19929084 is an apocalyptic number.

19929084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19929084 is an abundant number, since it is smaller than the sum of its proper divisors (34165740).

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

19929084 is a wasteful number, since it uses less digits than its factorization.

19929084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33914 (or 33905 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 19929084 is about 4464.2002643251. The cubic root of 19929084 is about 271.1205556496.

The spelling of 19929084 in words is "nineteen million, nine hundred twenty-nine thousand, eighty-four".