2220540726 has 32 divisors (see below), whose sum is σ = 4690971648. Its totient is φ = 699642720.

The previous prime is 2220540677. The next prime is 2220540737. The reversal of 2220540726 is 6270450222.

It is a super-2 number, since 2×2220540726² = 9861602231649214152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2220540693 and 2220540702.

It is a congruent number.

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, 130821 + ... + 146816.

It is an arithmetic number, because the mean of its divisors is an integer number (146592864).

Almost surely, 2^2220540726 is an apocalyptic number.

2220540726 is an abundant number, since it is smaller than the sum of its proper divisors (2470430922).

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

2220540726 is a wasteful number, since it uses less digits than its factorization.

2220540726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277716.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 2220540726 is about 47122.6137432974. The cubic root of 2220540726 is about 1304.6266555797.

Adding to 2220540726 its reverse (6270450222), we get a palindrome (8490990948).

The spelling of 2220540726 in words is "two billion, two hundred twenty million, five hundred forty thousand, seven hundred twenty-six".