2942097621 has 8 divisors (see below), whose sum is σ = 3953685504. Its totient is φ = 1945954080.

The previous prime is 2942097619. The next prime is 2942097659. The reversal of 2942097621 is 1267902492.

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

It is not a de Polignac number, because 2942097621 - 2¹ = 2942097619 is a prime.

It is a super-2 number, since 2×2942097621² = 17311876822987719282, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2942297621) 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, 3860640 + ... + 3861401.

It is an arithmetic number, because the mean of its divisors is an integer number (494210688).

Almost surely, 2^2942097621 is an apocalyptic number.

It is an amenable number.

2942097621 is a deficient number, since it is larger than the sum of its proper divisors (1011587883).

2942097621 is a wasteful number, since it uses less digits than its factorization.

2942097621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7722171.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 2942097621 is about 54241.1063769905. The cubic root of 2942097621 is about 1432.9103719679.

The spelling of 2942097621 in words is "two billion, nine hundred forty-two million, ninety-seven thousand, six hundred twenty-one".