19964234 has 4 divisors (see below), whose sum is σ = 29946354. Its totient is φ = 9982116.

The previous prime is 19964233. The next prime is 19964261. The reversal of 19964234 is 43246991.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16024009 + 3940225 = 4003^2 + 1985^2 .

It is not an unprimeable number, because it can be changed into a prime (19964233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4991057 + ... + 4991060.

Almost surely, 2^19964234 is an apocalyptic number.

19964234 is a deficient number, since it is larger than the sum of its proper divisors (9982120).

19964234 is an equidigital number, since it uses as much as digits as its factorization.

19964234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9982119.

The product of its digits is 46656, while the sum is 38.

The square root of 19964234 is about 4468.1354052893. The cubic root of 19964234 is about 271.2798586766.

The spelling of 19964234 in words is "nineteen million, nine hundred sixty-four thousand, two hundred thirty-four".