240023412 has 60 divisors (see below), whose sum is σ = 628948320. Its totient is φ = 79819344.

The previous prime is 240023347. The next prime is 240023417. The reversal of 240023412 is 214320042.

It is a super-2 number, since 2×240023412² = 115222476616243488, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240023417) 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 19 ways as a sum of consecutive naturals, for example, 235039 + ... + 236057.

It is an arithmetic number, because the mean of its divisors is an integer number (10482472).

Almost surely, 2^240023412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240023412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314474160).

240023412 is an abundant number, since it is smaller than the sum of its proper divisors (388924908).

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

240023412 is a wasteful number, since it uses less digits than its factorization.

240023412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762 (or 1751 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 240023412 is about 15492.6889854538. The cubic root of 240023412 is about 621.4667079025.

Adding to 240023412 its reverse (214320042), we get a palindrome (454343454).

The spelling of 240023412 in words is "two hundred forty million, twenty-three thousand, four hundred twelve".