20339834 has 8 divisors (see below), whose sum is σ = 30537108. Its totient is φ = 10160800.

The previous prime is 20339831. The next prime is 20339849. The reversal of 20339834 is 43893302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11055625 + 9284209 = 3325^2 + 3047^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 20339834.

It is not an unprimeable number, because it can be changed into a prime (20339831) 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, 1307 + ... + 6510.

Almost surely, 2^20339834 is an apocalyptic number.

20339834 is a deficient number, since it is larger than the sum of its proper divisors (10197274).

20339834 is a wasteful number, since it uses less digits than its factorization.

20339834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9120.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 20339834 is about 4509.9705098814. The cubic root of 20339834 is about 272.9705541463.

The spelling of 20339834 in words is "twenty million, three hundred thirty-nine thousand, eight hundred thirty-four".