19929051 has 16 divisors (see below), whose sum is σ = 30324000. Its totient is φ = 12926304.

The previous prime is 19929037. The next prime is 19929067. The reversal of 19929051 is 15092991.

It is a de Polignac number, because none of the positive numbers 2^k-19929051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19928997 and 19929015.

It is not an unprimeable number, because it can be changed into a prime (19929031) 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 15 ways as a sum of consecutive naturals, for example, 8976 + ... + 10973.

It is an arithmetic number, because the mean of its divisors is an integer number (1895250).

Almost surely, 2^19929051 is an apocalyptic number.

19929051 is a deficient number, since it is larger than the sum of its proper divisors (10394949).

19929051 is a wasteful number, since it uses less digits than its factorization.

19929051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19995 (or 19989 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 36.

The square root of 19929051 is about 4464.1965682528. The cubic root of 19929051 is about 271.1204060026.

The spelling of 19929051 in words is "nineteen million, nine hundred twenty-nine thousand, fifty-one".