240323321204240 has 20 divisors (see below), whose sum is σ = 558751721800044. Its totient is φ = 96129328481664.

The previous prime is 240323321204231. The next prime is 240323321204251. The reversal of 240323321204240 is 42402123323042.

It can be written as a sum of positive squares in 2 ways, for example, as 93748327546384 + 146574993657856 = 9682372^2 + 12106816^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×240323321204240² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 240323321204197 and 240323321204206.

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, 1502020757447 + ... + 1502020757606.

Almost surely, 2^{240323321204240} is an apocalyptic number.

240323321204240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240323321204240 is an abundant number, since it is smaller than the sum of its proper divisors (318428400595804).

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

240323321204240 is a wasteful number, since it uses less digits than its factorization.

240323321204240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004041515066 (or 3004041515060 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 240323321204240 its reverse (42402123323042), we get a palindrome (282725444527282).

The spelling of 240323321204240 in words is "two hundred forty trillion, three hundred twenty-three billion, three hundred twenty-one million, two hundred four thousand, two hundred forty".