20339824 has 10 divisors (see below), whose sum is σ = 39408440. Its totient is φ = 10169904.

The previous prime is 20339819. The next prime is 20339831. The reversal of 20339824 is 42893302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635604 + ... + 635635.

It is an arithmetic number, because the mean of its divisors is an integer number (3940844).

Almost surely, 2^20339824 is an apocalyptic number.

It is an amenable number.

20339824 is a deficient number, since it is larger than the sum of its proper divisors (19068616).

20339824 is a wasteful number, since it uses less digits than its factorization.

20339824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271247 (or 1271241 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 20339824 is about 4509.9694012266. The cubic root of 20339824 is about 272.9705094113.

The spelling of 20339824 in words is "twenty million, three hundred thirty-nine thousand, eight hundred twenty-four".