2209444347 has 32 divisors (see below), whose sum is σ = 3247985664. Its totient is φ = 1324857600.

The previous prime is 2209444283. The next prime is 2209444397. The reversal of 2209444347 is 7434449022.

It is not a de Polignac number, because 2209444347 - 2⁶ = 2209444283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2209444397) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1794222 + ... + 1795452.

It is an arithmetic number, because the mean of its divisors is an integer number (101499552).

Almost surely, 2^2209444347 is an apocalyptic number.

2209444347 is a deficient number, since it is larger than the sum of its proper divisors (1038541317).

2209444347 is a wasteful number, since it uses less digits than its factorization.

2209444347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779.

The product of its (nonzero) digits is 193536, while the sum is 39.

The square root of 2209444347 is about 47004.7268580512. The cubic root of 2209444347 is about 1302.4498865314.

The spelling of 2209444347 in words is "two billion, two hundred nine million, four hundred forty-four thousand, three hundred forty-seven".