23043042 has 80 divisors (see below), whose sum is σ = 57464352. Its totient is φ = 6842880.

The previous prime is 23043037. The next prime is 23043043. The reversal of 23043042 is 24034032.

23043042 is a `hidden beast` number, since 230 + 430 + 4 + 2 = 666.

It is a super-2 number, since 2×23043042² = 1061963569227528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (23043043) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 119298 + ... + 119490.

Almost surely, 2^23043042 is an apocalyptic number.

23043042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 23043042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28732176).

23043042 is an abundant number, since it is smaller than the sum of its proper divisors (34421310).

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

23043042 is a wasteful number, since it uses less digits than its factorization.

23043042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 23043042 is about 4800.3168645413. The cubic root of 23043042 is about 284.5639870366.

Adding to 23043042 its reverse (24034032), we get a palindrome (47077074).

The spelling of 23043042 in words is "twenty-three million, forty-three thousand, forty-two".