2921240081 has 8 divisors (see below), whose sum is σ = 3023884800. Its totient is φ = 2819121120.

The previous prime is 2921240071. The next prime is 2921240107. The reversal of 2921240081 is 1800421292.

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 2921240081 - 2⁶ = 2921240017 is a prime.

It is a super-2 number, since 2×2921240081² = 17067287221681773122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2921240071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120116 + ... + 142373.

It is an arithmetic number, because the mean of its divisors is an integer number (377985600).

Almost surely, 2^2921240081 is an apocalyptic number.

It is an amenable number.

2921240081 is a deficient number, since it is larger than the sum of its proper divisors (102644719).

2921240081 is a wasteful number, since it uses less digits than its factorization.

2921240081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262879.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 2921240081 is about 54048.4974906796. The cubic root of 2921240081 is about 1429.5162073151.

The spelling of 2921240081 in words is "two billion, nine hundred twenty-one million, two hundred forty thousand, eighty-one".