2242807921 has 8 divisors (see below), whose sum is σ = 2274026400. Its totient is φ = 2211723360.

The previous prime is 2242807913. The next prime is 2242807927. The reversal of 2242807921 is 1297082422.

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 2242807921 - 2³ = 2242807913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2242807927) 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, 486 + ... + 66976.

It is an arithmetic number, because the mean of its divisors is an integer number (284253300).

Almost surely, 2^2242807921 is an apocalyptic number.

It is an amenable number.

2242807921 is a deficient number, since it is larger than the sum of its proper divisors (31218479).

2242807921 is an equidigital number, since it uses as much as digits as its factorization.

2242807921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66959.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 2242807921 is about 47358.2930541209. The cubic root of 2242807921 is about 1308.9730157772.

The spelling of 2242807921 in words is "two billion, two hundred forty-two million, eight hundred seven thousand, nine hundred twenty-one".