220267745 has 8 divisors (see below), whose sum is σ = 266746920. Its totient is φ = 174597120.

The previous prime is 220267699. The next prime is 220267763. The reversal of 220267745 is 547762022.

It can be written as a sum of positive squares in 4 ways, for example, as 398161 + 219869584 = 631^2 + 14828^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220267745 - 2¹⁸ = 220005601 is a prime.

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, 201536 + ... + 202625.

It is an arithmetic number, because the mean of its divisors is an integer number (33343365).

Almost surely, 2^220267745 is an apocalyptic number.

It is an amenable number.

220267745 is a deficient number, since it is larger than the sum of its proper divisors (46479175).

220267745 is a wasteful number, since it uses less digits than its factorization.

220267745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404275.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 220267745 is about 14841.4199118548. The cubic root of 220267745 is about 603.9258722604.

The spelling of 220267745 in words is "two hundred twenty million, two hundred sixty-seven thousand, seven hundred forty-five".