20732834 has 4 divisors (see below), whose sum is σ = 31099254. Its totient is φ = 10366416.

The previous prime is 20732827. The next prime is 20732849. The reversal of 20732834 is 43823702.

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., 20729809 + 3025 = 4553^2 + 55^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20732797 and 20732806.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5183207 + ... + 5183210.

Almost surely, 2^20732834 is an apocalyptic number.

20732834 is a deficient number, since it is larger than the sum of its proper divisors (10366420).

20732834 is a wasteful number, since it uses less digits than its factorization.

20732834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10366419.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 20732834 is about 4553.3321864323. The cubic root of 20732834 is about 274.7174353820.

The spelling of 20732834 in words is "twenty million, seven hundred thirty-two thousand, eight hundred thirty-four".