2821241905 has 8 divisors (see below), whose sum is σ = 3402504000. Its totient is φ = 2245651056.

The previous prime is 2821241879. The next prime is 2821241921. The reversal of 2821241905 is 5091421282.

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 2821241905 - 2⁵ = 2821241873 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1416715 + ... + 1418704.

It is an arithmetic number, because the mean of its divisors is an integer number (425313000).

Almost surely, 2^2821241905 is an apocalyptic number.

It is an amenable number.

2821241905 is a deficient number, since it is larger than the sum of its proper divisors (581262095).

2821241905 is a wasteful number, since it uses less digits than its factorization.

2821241905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2835623.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 2821241905 is about 53115.3641143502. The cubic root of 2821241905 is about 1413.0150102576.

The spelling of 2821241905 in words is "two billion, eight hundred twenty-one million, two hundred forty-one thousand, nine hundred five".