3261302922240 has 616 divisors, whose sum is σ = 12796079617008. Its totient is φ = 790608936960.

The previous prime is 3261302922217. The next prime is 3261302922259. The reversal of 3261302922240 is 422292031623.

3261302922240 is a `hidden beast` number, since 3 + 26 + 1 + 302 + 92 + 2 + 240 = 666.

It is a super-2 number, since 2×3261302922240² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3261302922195 and 3261302922204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 41017564 + ... + 41096996.

Almost surely, 2^{3261302922240} is an apocalyptic number.

3261302922240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3261302922240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6398039808504).

3261302922240 is an abundant number, since it is smaller than the sum of its proper divisors (9534776694768).

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

3261302922240 is an equidigital number, since it uses as much as digits as its factorization.

3261302922240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79487 (or 79454 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

Adding to 3261302922240 its reverse (422292031623), we get a palindrome (3683594953863).

The spelling of 3261302922240 in words is "three trillion, two hundred sixty-one billion, three hundred two million, nine hundred twenty-two thousand, two hundred forty".