220040040426 has 16 divisors (see below), whose sum is σ = 440089321728. Its totient is φ = 73345140000.

The previous prime is 220040040401. The next prime is 220040040439. The reversal of 220040040426 is 624040040022.

It is a super-2 number, since 2×220040040426² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220040040396 and 220040040405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53530 + ... + 665541.

It is an arithmetic number, because the mean of its divisors is an integer number (27505582608).

Almost surely, 2^220040040426 is an apocalyptic number.

220040040426 is an abundant number, since it is smaller than the sum of its proper divisors (220049281302).

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

220040040426 is a wasteful number, since it uses less digits than its factorization.

220040040426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770077.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 220040040426 its reverse (624040040022), we get a palindrome (844080080448).

The spelling of 220040040426 in words is "two hundred twenty billion, forty million, forty thousand, four hundred twenty-six".