233422638 has 16 divisors (see below), whose sum is σ = 491416320. Its totient is φ = 73712376.

The previous prime is 233422627. The next prime is 233422639. The reversal of 233422638 is 836224332.

It is a super-2 number, since 2×233422638² = 108972255861758088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 233422599 and 233422608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233422639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1023670 + ... + 1023897.

It is an arithmetic number, because the mean of its divisors is an integer number (30713520).

Almost surely, 2^233422638 is an apocalyptic number.

233422638 is an abundant number, since it is smaller than the sum of its proper divisors (257993682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

233422638 is a wasteful number, since it uses less digits than its factorization.

233422638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047591.

The product of its digits is 41472, while the sum is 33.

The square root of 233422638 is about 15278.1752182648. The cubic root of 233422638 is about 615.7167820865.

The spelling of 233422638 in words is "two hundred thirty-three million, four hundred twenty-two thousand, six hundred thirty-eight".