1940350185 has 12 divisors (see below), whose sum is σ = 3363273732. Its totient is φ = 1034853408.

The previous prime is 1940350157. The next prime is 1940350187. The reversal of 1940350185 is 5810530491.

It can be written as a sum of positive squares in 2 ways, for example, as 1493281449 + 447068736 = 38643^2 + 21144^2 .

It is not a de Polignac number, because 1940350185 - 2⁷ = 1940350057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1940350187) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21559402 + ... + 21559491.

It is an arithmetic number, because the mean of its divisors is an integer number (280272811).

Almost surely, 2^1940350185 is an apocalyptic number.

1940350185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1940350185 is a deficient number, since it is larger than the sum of its proper divisors (1422923547).

1940350185 is a wasteful number, since it uses less digits than its factorization.

1940350185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43118904 (or 43118901 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 1940350185 is about 44049.4061821496. The cubic root of 1940350185 is about 1247.2687426666.

The spelling of 1940350185 in words is "one billion, nine hundred forty million, three hundred fifty thousand, one hundred eighty-five".