23045442 has 32 divisors (see below), whose sum is σ = 55449600. Its totient is φ = 6237648.

The previous prime is 23045441. The next prime is 23045467. The reversal of 23045442 is 24454032.

23045442 = T₁₅₄₈ + T₁₅₄₉ + ... + T₁₅₆₆.

It is not an unprimeable number, because it can be changed into a prime (23045441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13642 + ... + 15237.

It is an arithmetic number, because the mean of its divisors is an integer number (1732800).

Almost surely, 2^23045442 is an apocalyptic number.

23045442 is an abundant number, since it is smaller than the sum of its proper divisors (32404158).

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

23045442 is a wasteful number, since it uses less digits than its factorization.

23045442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28910.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 23045442 is about 4800.5668415303. The cubic root of 23045442 is about 284.5738660832.

Adding to 23045442 its reverse (24454032), we get a palindrome (47499474).

The spelling of 23045442 in words is "twenty-three million, forty-five thousand, four hundred forty-two".