220000742 has 32 divisors (see below), whose sum is σ = 370246464. Its totient is φ = 97372800.

The previous prime is 220000673. The next prime is 220000763. The reversal of 220000742 is 247000022.

It is a self number, because there is not a number n which added to its sum of digits gives 220000742.

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, 66692 + ... + 69912.

It is an arithmetic number, because the mean of its divisors is an integer number (11570202).

Almost surely, 2^220000742 is an apocalyptic number.

220000742 is a deficient number, since it is larger than the sum of its proper divisors (150245722).

220000742 is a wasteful number, since it uses less digits than its factorization.

220000742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 220000742 is about 14832.4219869851. The cubic root of 220000742 is about 603.6817523629.

Adding to 220000742 its reverse (247000022), we get a palindrome (467000764).

The spelling of 220000742 in words is "two hundred twenty million, seven hundred forty-two", and thus it is an aban number.