220751234 has 32 divisors (see below), whose sum is σ = 381542400. Its totient is φ = 94735440.

The previous prime is 220751231. The next prime is 220751249. The reversal of 220751234 is 432157022.

It is a super-2 number, since 2×220751234² = 97462214625045512, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220751231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152687 + ... + 154125.

It is an arithmetic number, because the mean of its divisors is an integer number (11923200).

Almost surely, 2^220751234 is an apocalyptic number.

220751234 is a deficient number, since it is larger than the sum of its proper divisors (160791166).

220751234 is a wasteful number, since it uses less digits than its factorization.

220751234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 220751234 is about 14857.6994854520. The cubic root of 220751234 is about 604.3674229667.

The spelling of 220751234 in words is "two hundred twenty million, seven hundred fifty-one thousand, two hundred thirty-four".