220642036 has 24 divisors (see below), whose sum is σ = 407453760. Its totient is φ = 104334912.

The previous prime is 220642027. The next prime is 220642049. The reversal of 220642036 is 630246022.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 220642036.

It is a congruent number.

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, 5286 + ... + 21661.

It is an arithmetic number, because the mean of its divisors is an integer number (16977240).

Almost surely, 2^220642036 is an apocalyptic number.

It is an amenable number.

220642036 is a deficient number, since it is larger than the sum of its proper divisors (186811724).

220642036 is a wasteful number, since it uses less digits than its factorization.

220642036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27063 (or 27061 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 220642036 is about 14854.0242358763. The cubic root of 220642036 is about 604.2677533105.

Adding to 220642036 its reverse (630246022), we get a palindrome (850888058).

The spelling of 220642036 in words is "two hundred twenty million, six hundred forty-two thousand, thirty-six".