20740475204 has 24 divisors (see below), whose sum is σ = 36750570360. Its totient is φ = 10240782336.

The previous prime is 20740475179. The next prime is 20740475207. The reversal of 20740475204 is 40257404702.

It can be written as a sum of positive squares in 4 ways, for example, as 11828737600 + 8911737604 = 108760^2 + 94402^2 .

It is not an unprimeable number, because it can be changed into a prime (20740475207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118832 + ... + 235800.

It is an arithmetic number, because the mean of its divisors is an integer number (1531273765).

Almost surely, 2^20740475204 is an apocalyptic number.

It is an amenable number.

20740475204 is a deficient number, since it is larger than the sum of its proper divisors (16010095156).

20740475204 is a wasteful number, since it uses less digits than its factorization.

20740475204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117527 (or 117525 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 35.

Adding to 20740475204 its reverse (40257404702), we get a palindrome (60997879906).

The spelling of 20740475204 in words is "twenty billion, seven hundred forty million, four hundred seventy-five thousand, two hundred four".