240023616 has 112 divisors (see below), whose sum is σ = 729569280. Its totient is φ = 68221440.

The previous prime is 240023611. The next prime is 240023617. The reversal of 240023616 is 616320042.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×240023616² = 115222672475430912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (240023611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363895 + ... + 364553.

Almost surely, 2^240023616 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 240023616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364784640).

240023616 is an abundant number, since it is smaller than the sum of its proper divisors (489545664).

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

240023616 is a wasteful number, since it uses less digits than its factorization.

240023616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952 (or 942 counting only the distinct ones).

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

The square root of 240023616 is about 15492.6955692029. The cubic root of 240023616 is about 621.4668839675.

Adding to 240023616 its reverse (616320042), we get a palindrome (856343658).

The spelling of 240023616 in words is "two hundred forty million, twenty-three thousand, six hundred sixteen".