20426237234 has 16 divisors (see below), whose sum is σ = 33015255000. Its totient is φ = 9422058240.

The previous prime is 20426237231. The next prime is 20426237281. The reversal of 20426237234 is 43273262402.

It can be written as a sum of positive squares in 4 ways, for example, as 10302859009 + 10123378225 = 101503^2 + 100615^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20426237194 and 20426237203.

It is not an unprimeable number, because it can be changed into a prime (20426237231) 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, 180359 + ... + 270890.

Almost surely, 2^20426237234 is an apocalyptic number.

20426237234 is a deficient number, since it is larger than the sum of its proper divisors (12589017766).

20426237234 is a wasteful number, since it uses less digits than its factorization.

20426237234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453005.

The product of its (nonzero) digits is 96768, while the sum is 35.

Adding to 20426237234 its reverse (43273262402), we get a palindrome (63699499636).

The spelling of 20426237234 in words is "twenty billion, four hundred twenty-six million, two hundred thirty-seven thousand, two hundred thirty-four".