226642442 has 16 divisors (see below), whose sum is σ = 367027080. Its totient is φ = 104343552.

The previous prime is 226642433. The next prime is 226642447. The reversal of 226642442 is 244246622.

It can be written as a sum of positive squares in 4 ways, for example, as 180660481 + 45981961 = 13441^2 + 6781^2 .

It is a junction number, because it is equal to n+sod(n) for n = 226642399 and 226642408.

It is not an unprimeable number, because it can be changed into a prime (226642447) 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, 23 + ... + 21290.

Almost surely, 2^226642442 is an apocalyptic number.

226642442 is a deficient number, since it is larger than the sum of its proper divisors (140384638).

226642442 is a wasteful number, since it uses less digits than its factorization.

226642442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21737.

The product of its digits is 36864, while the sum is 32.

The square root of 226642442 is about 15054.6485179827. The cubic root of 226642442 is about 609.6965632292.

The spelling of 226642442 in words is "two hundred twenty-six million, six hundred forty-two thousand, four hundred forty-two".