240021402304 has 56 divisors (see below), whose sum is σ = 489500283888. Its totient is φ = 116701839360.

The previous prime is 240021402293. The next prime is 240021402377. The reversal of 240021402304 is 403204120042.

It is a happy number.

It is a super-2 number, since 2×240021402304² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656592 + ... + 954544.

It is an arithmetic number, because the mean of its divisors is an integer number (8741076498).

Almost surely, 2^240021402304 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 240021402304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244750141944).

240021402304 is an abundant number, since it is smaller than the sum of its proper divisors (249478881584).

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

240021402304 is a wasteful number, since it uses less digits than its factorization.

240021402304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298313 (or 298303 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 240021402304 its reverse (403204120042), we get a palindrome (643225522346).

The spelling of 240021402304 in words is "two hundred forty billion, twenty-one million, four hundred two thousand, three hundred four".