3960440238621 has 8 divisors (see below), whose sum is σ = 5409381789504. Its totient is φ = 2575896090080.

The previous prime is 3960440238611. The next prime is 3960440238631. The reversal of 3960440238621 is 1268320440693.

It is an interprime number because it is at equal distance from previous prime (3960440238611) and next prime (3960440238631).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3960440238621 - 2¹⁵ = 3960440205853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3960440238611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16099350441 + ... + 16099350686.

It is an arithmetic number, because the mean of its divisors is an integer number (676172723688).

Almost surely, 2^{3960440238621} is an apocalyptic number.

It is an amenable number.

3960440238621 is a deficient number, since it is larger than the sum of its proper divisors (1448941550883).

3960440238621 is a wasteful number, since it uses less digits than its factorization.

3960440238621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32198701171.

The product of its (nonzero) digits is 1492992, while the sum is 48.

The spelling of 3960440238621 in words is "three trillion, nine hundred sixty billion, four hundred forty million, two hundred thirty-eight thousand, six hundred twenty-one".