240023838 has 8 divisors (see below), whose sum is σ = 480047688. Its totient is φ = 80007944.

The previous prime is 240023813. The next prime is 240023843. The reversal of 240023838 is 838320042.

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

240023838 is an admirable number.

It is a super-2 number, since 2×240023838² = 115222885616500488, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20001981 + ... + 20001992.

It is an arithmetic number, because the mean of its divisors is an integer number (60005961).

Almost surely, 2^240023838 is an apocalyptic number.

240023838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

240023838 is a wasteful number, since it uses less digits than its factorization.

240023838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40003978.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 240023838 is about 15492.7027338680. The cubic root of 240023838 is about 621.4670755675.

The spelling of 240023838 in words is "two hundred forty million, twenty-three thousand, eight hundred thirty-eight".