23740381 has 8 divisors (see below), whose sum is σ = 28728000. Its totient is φ = 19151808.

The previous prime is 23740373. The next prime is 23740417. The reversal of 23740381 is 18304732.

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

It is a cyclic number.

It is not a de Polignac number, because 23740381 - 2³ = 23740373 is a prime.

It is a super-2 number, since 2×23740381² = 1127211380050322, which contains 22 as substring.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23744381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99631 + ... + 99868.

It is an arithmetic number, because the mean of its divisors is an integer number (3591000).

Almost surely, 2^23740381 is an apocalyptic number.

It is an amenable number.

23740381 is a deficient number, since it is larger than the sum of its proper divisors (4987619).

23740381 is a wasteful number, since it uses less digits than its factorization.

23740381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199523.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 23740381 is about 4872.4101838823. The cubic root of 23740381 is about 287.4060426432.

The spelling of 23740381 in words is "twenty-three million, seven hundred forty thousand, three hundred eighty-one".