220000743 has 6 divisors (see below), whose sum is σ = 317778864. Its totient is φ = 146667156.

The previous prime is 220000673. The next prime is 220000763. The reversal of 220000743 is 347000022.

It is a happy number.

It is not a de Polignac number, because 220000743 - 2¹³ = 219992551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220000763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12222255 + ... + 12222272.

It is an arithmetic number, because the mean of its divisors is an integer number (52963144).

Almost surely, 2^220000743 is an apocalyptic number.

220000743 is a deficient number, since it is larger than the sum of its proper divisors (97778121).

220000743 is a wasteful number, since it uses less digits than its factorization.

220000743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24444533 (or 24444530 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 220000743 is about 14832.4220206951. The cubic root of 220000743 is about 603.6817532775.

Adding to 220000743 its reverse (347000022), we get a palindrome (567000765).

The spelling of 220000743 in words is "two hundred twenty million, seven hundred forty-three", and thus it is an aban number.