1940998705 has 16 divisors (see below), whose sum is σ = 2339110224. Its totient is φ = 1546209280.

The previous prime is 1940998699. The next prime is 1940998729. The reversal of 1940998705 is 5078990491.

It can be written as a sum of positive squares in 8 ways, for example, as 109244304 + 1831754401 = 10452^2 + 42799^2 .

It is not a de Polignac number, because 1940998705 - 2¹⁵ = 1940965937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1828875 + ... + 1829935.

It is an arithmetic number, because the mean of its divisors is an integer number (146194389).

Almost surely, 2^1940998705 is an apocalyptic number.

It is an amenable number.

1940998705 is a deficient number, since it is larger than the sum of its proper divisors (398111519).

1940998705 is a wasteful number, since it uses less digits than its factorization.

1940998705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276.

The product of its (nonzero) digits is 816480, while the sum is 52.

The square root of 1940998705 is about 44056.7668468761. The cubic root of 1940998705 is about 1247.4076847042.

The spelling of 1940998705 in words is "one billion, nine hundred forty million, nine hundred ninety-eight thousand, seven hundred five".