20339473 has 16 divisors (see below), whose sum is σ = 25952256. Its totient is φ = 15477840.

The previous prime is 20339467. The next prime is 20339489. The reversal of 20339473 is 37493302.

It is not a de Polignac number, because 20339473 - 2¹³ = 20331281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20339173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240 + ... + 6382.

It is an arithmetic number, because the mean of its divisors is an integer number (1622016).

Almost surely, 2^20339473 is an apocalyptic number.

It is an amenable number.

20339473 is a deficient number, since it is larger than the sum of its proper divisors (5612783).

20339473 is a wasteful number, since it uses less digits than its factorization.

20339473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6204.

The product of its (nonzero) digits is 13608, while the sum is 31.

The square root of 20339473 is about 4509.9304872692. The cubic root of 20339473 is about 272.9689392043.

The spelling of 20339473 in words is "twenty million, three hundred thirty-nine thousand, four hundred seventy-three".