220631074 has 8 divisors (see below), whose sum is σ = 339891228. Its totient is φ = 107334000.

The previous prime is 220631053. The next prime is 220631077. The reversal of 220631074 is 470136022.

It can be written as a sum of positive squares in 2 ways, for example, as 220374025 + 257049 = 14845^2 + 507^2 .

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

It is not an unprimeable number, because it can be changed into a prime (220631077) 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, 1490677 + ... + 1490824.

Almost surely, 2^220631074 is an apocalyptic number.

220631074 is a deficient number, since it is larger than the sum of its proper divisors (119260154).

220631074 is a wasteful number, since it uses less digits than its factorization.

220631074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981540.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 220631074 is about 14853.6552403777. The cubic root of 220631074 is about 604.2577460110.

Adding to 220631074 its reverse (470136022), we get a palindrome (690767096).

The spelling of 220631074 in words is "two hundred twenty million, six hundred thirty-one thousand, seventy-four".