220140426 has 32 divisors (see below), whose sum is σ = 487484928. Its totient is φ = 65712240.

The previous prime is 220140419. The next prime is 220140443. The reversal of 220140426 is 624041022.

220140426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×220140426² = 96923614318922952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20470 + ... + 29313.

It is an arithmetic number, because the mean of its divisors is an integer number (15233904).

Almost surely, 2^220140426 is an apocalyptic number.

220140426 is an abundant number, since it is smaller than the sum of its proper divisors (267344502).

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

220140426 is a wasteful number, since it uses less digits than its factorization.

220140426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49866.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 220140426 is about 14837.1299785370. The cubic root of 220140426 is about 603.8094895708.

Adding to 220140426 its reverse (624041022), we get a palindrome (844181448).

The spelling of 220140426 in words is "two hundred twenty million, one hundred forty thousand, four hundred twenty-six".