240021402344 has 8 divisors (see below), whose sum is σ = 450040129410. Its totient is φ = 120010701168.

The previous prime is 240021402293. The next prime is 240021402377. The reversal of 240021402344 is 443204120042.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 168912780100 + 71108622244 = 410990^2 + 266662^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×240021402344² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15001337639 + ... + 15001337654.

Almost surely, 2^240021402344 is an apocalyptic number.

It is an amenable number.

240021402344 is a deficient number, since it is larger than the sum of its proper divisors (210018727066).

240021402344 is a wasteful number, since it uses less digits than its factorization.

240021402344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30002675299 (or 30002675295 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 240021402344 its reverse (443204120042), we get a palindrome (683225522386).

The spelling of 240021402344 in words is "two hundred forty billion, twenty-one million, four hundred two thousand, three hundred forty-four".