19954929 has 16 divisors (see below), whose sum is σ = 27645120. Its totient is φ = 12788160.

The previous prime is 19954927. The next prime is 19954933. The reversal of 19954929 is 92945991.

It is not a de Polignac number, because 19954929 - 2¹ = 19954927 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19954927) 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, 29859 + ... + 30519.

It is an arithmetic number, because the mean of its divisors is an integer number (1727820).

Almost surely, 2^19954929 is an apocalyptic number.

It is an amenable number.

19954929 is a deficient number, since it is larger than the sum of its proper divisors (7690191).

19954929 is a wasteful number, since it uses less digits than its factorization.

19954929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040.

The product of its digits is 262440, while the sum is 48.

The square root of 19954929 is about 4467.0940218446. The cubic root of 19954929 is about 271.2377057719.

The spelling of 19954929 in words is "nineteen million, nine hundred fifty-four thousand, nine hundred twenty-nine".