20407040226 has 48 divisors (see below), whose sum is σ = 44997674904. Its totient is φ = 6683000832.

The previous prime is 20407040219. The next prime is 20407040257. The reversal of 20407040226 is 62204070402.

It is a happy number.

20407040226 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 20406408201 + 632025 = 142851^2 + 795^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20407040226.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196546 + ... + 281858.

Almost surely, 2^20407040226 is an apocalyptic number.

20407040226 is an abundant number, since it is smaller than the sum of its proper divisors (24590634678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20407040226 is a wasteful number, since it uses less digits than its factorization.

20407040226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85555 (or 85552 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The spelling of 20407040226 in words is "twenty billion, four hundred seven million, forty thousand, two hundred twenty-six".