23029381 has 8 divisors (see below), whose sum is σ = 23740640. Its totient is φ = 22326192.

The previous prime is 23029343. The next prime is 23029397. The reversal of 23029381 is 18392032.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23029381 is a prime.

It is a super-2 number, since 2×23029381² = 1060704778486322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23029301) 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, 4051 + ... + 7903.

It is an arithmetic number, because the mean of its divisors is an integer number (2967580).

Almost surely, 2^23029381 is an apocalyptic number.

It is an amenable number.

23029381 is a deficient number, since it is larger than the sum of its proper divisors (711259).

23029381 is a wasteful number, since it uses less digits than its factorization.

23029381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 23029381 is about 4798.8937266833. The cubic root of 23029381 is about 284.5077416112.

The spelling of 23029381 in words is "twenty-three million, twenty-nine thousand, three hundred eighty-one".