2242905649 has 4 divisors (see below), whose sum is σ = 2264681536. Its totient is φ = 2221129764.

The previous prime is 2242905647. The next prime is 2242905653. The reversal of 2242905649 is 9465092422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2242905649 - 2¹ = 2242905647 is a prime.

It is a super-2 number, since 2×2242905649² = 10061251500632222402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2242905641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10887789 + ... + 10887994.

It is an arithmetic number, because the mean of its divisors is an integer number (566170384).

Almost surely, 2^2242905649 is an apocalyptic number.

It is an amenable number.

2242905649 is a deficient number, since it is larger than the sum of its proper divisors (21775887).

2242905649 is a wasteful number, since it uses less digits than its factorization.

2242905649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21775886.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 2242905649 is about 47359.3248368260. The cubic root of 2242905649 is about 1308.9920278759.

The spelling of 2242905649 in words is "two billion, two hundred forty-two million, nine hundred five thousand, six hundred forty-nine".