19954734 has 8 divisors (see below), whose sum is σ = 39909480. Its totient is φ = 6651576.

The previous prime is 19954733. The next prime is 19954757. The reversal of 19954734 is 43745991.

It is a sphenic number, since it is the product of 3 distinct primes.

19954734 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19954733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1662889 + ... + 1662900.

It is an arithmetic number, because the mean of its divisors is an integer number (4988685).

Almost surely, 2^19954734 is an apocalyptic number.

19954734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19954734 is a wasteful number, since it uses less digits than its factorization.

19954734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3325794.

The product of its digits is 136080, while the sum is 42.

The square root of 19954734 is about 4467.0721955214. The cubic root of 19954734 is about 271.2368222555.

The spelling of 19954734 in words is "nineteen million, nine hundred fifty-four thousand, seven hundred thirty-four".