221926634 has 16 divisors (see below), whose sum is σ = 336825216. Its totient is φ = 109659600.

The previous prime is 221926603. The next prime is 221926637. The reversal of 221926634 is 436629122.

221926634 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221926594 and 221926603.

It is not an unprimeable number, because it can be changed into a prime (221926637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58619 + ... + 62289.

It is an arithmetic number, because the mean of its divisors is an integer number (21051576).

Almost surely, 2^221926634 is an apocalyptic number.

221926634 is a deficient number, since it is larger than the sum of its proper divisors (114898582).

221926634 is a wasteful number, since it uses less digits than its factorization.

221926634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4021.

The product of its digits is 31104, while the sum is 35.

The square root of 221926634 is about 14897.2022205513. The cubic root of 221926634 is about 605.4381853919.

The spelling of 221926634 in words is "two hundred twenty-one million, nine hundred twenty-six thousand, six hundred thirty-four".