2117240390 has 16 divisors (see below), whose sum is σ = 3976730208. Its totient is φ = 810074496.

The previous prime is 2117240371. The next prime is 2117240453. The reversal of 2117240390 is 930427112.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4602467 + ... + 4602926.

It is an arithmetic number, because the mean of its divisors is an integer number (248545638).

Almost surely, 2^2117240390 is an apocalyptic number.

2117240390 is a deficient number, since it is larger than the sum of its proper divisors (1859489818).

2117240390 is a wasteful number, since it uses less digits than its factorization.

2117240390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9205423.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 2117240390 is about 46013.4805247332. The cubic root of 2117240390 is about 1284.0740127916.

The spelling of 2117240390 in words is "two billion, one hundred seventeen million, two hundred forty thousand, three hundred ninety".