220367641 has 4 divisors (see below), whose sum is σ = 237319012. Its totient is φ = 203416272.

The previous prime is 220367639. The next prime is 220367657. The reversal of 220367641 is 146763022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24255625 + 196112016 = 4925^2 + 14004^2 .

It is a cyclic number.

It is not a de Polignac number, because 220367641 - 2¹ = 220367639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220367621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8475666 + ... + 8475691.

It is an arithmetic number, because the mean of its divisors is an integer number (59329753).

Almost surely, 2^220367641 is an apocalyptic number.

It is an amenable number.

220367641 is a deficient number, since it is larger than the sum of its proper divisors (16951371).

220367641 is a wasteful number, since it uses less digits than its factorization.

220367641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16951370.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 220367641 is about 14844.7849765498. The cubic root of 220367641 is about 604.0171561067.

The spelling of 220367641 in words is "two hundred twenty million, three hundred sixty-seven thousand, six hundred forty-one".