23055642 has 12 divisors (see below), whose sum is σ = 49953930. Its totient is φ = 7685208.

The previous prime is 23055631. The next prime is 23055647. The reversal of 23055642 is 24655032.

It can be written as a sum of positive squares in only one way, i.e., 12809241 + 10246401 = 3579^2 + 3201^2 .

It is not an unprimeable number, because it can be changed into a prime (23055647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 640417 + ... + 640452.

Almost surely, 2^23055642 is an apocalyptic number.

23055642 is an abundant number, since it is smaller than the sum of its proper divisors (26898288).

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

23055642 is a wasteful number, since it uses less digits than its factorization.

23055642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280877 (or 1280874 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 23055642 is about 4801.6290985456. The cubic root of 23055642 is about 284.6158443813.

The spelling of 23055642 in words is "twenty-three million, fifty-five thousand, six hundred forty-two".