20467904234 has 8 divisors (see below), whose sum is σ = 31018370628. Its totient is φ = 10128447360.

The previous prime is 20467904209. The next prime is 20467904293. The reversal of 20467904234 is 43240976402.

It can be written as a sum of positive squares in 2 ways, for example, as 19001244025 + 1466660209 = 137845^2 + 38297^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20467904191 and 20467904200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52752137 + ... + 52752524.

Almost surely, 2^20467904234 is an apocalyptic number.

20467904234 is a deficient number, since it is larger than the sum of its proper divisors (10550466394).

20467904234 is a wasteful number, since it uses less digits than its factorization.

20467904234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105504760.

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 20467904234 in words is "twenty billion, four hundred sixty-seven million, nine hundred four thousand, two hundred thirty-four".