23043381 has 8 divisors (see below), whose sum is σ = 32531904. Its totient is φ = 14458560.

The previous prime is 23043367. The next prime is 23043389. The reversal of 23043381 is 18334032.

23043381 = T₁₆₃₈ + T₁₆₃₉ + ... + T₁₆₅₄.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23043381 - 2⁹ = 23042869 is a prime.

It is a super-2 number, since 2×23043381² = 1061994815822322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23043389) 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, 225865 + ... + 225966.

It is an arithmetic number, because the mean of its divisors is an integer number (4066488).

Almost surely, 2^23043381 is an apocalyptic number.

It is an amenable number.

23043381 is a deficient number, since it is larger than the sum of its proper divisors (9488523).

23043381 is a wasteful number, since it uses less digits than its factorization.

23043381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451851.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 23043381 is about 4800.3521745805. The cubic root of 23043381 is about 284.5653824935.

The spelling of 23043381 in words is "twenty-three million, forty-three thousand, three hundred eighty-one".