1940689174 has 16 divisors (see below), whose sum is σ = 2941526016. Its totient is φ = 960201000.

The previous prime is 1940689171. The next prime is 1940689199. The reversal of 1940689174 is 4719860491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940689171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207499 + ... + 216649.

It is an arithmetic number, because the mean of its divisors is an integer number (183845376).

Almost surely, 2^1940689174 is an apocalyptic number.

1940689174 is a deficient number, since it is larger than the sum of its proper divisors (1000836842).

1940689174 is a wasteful number, since it uses less digits than its factorization.

1940689174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10251.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 1940689174 is about 44053.2538412318. The cubic root of 1940689174 is about 1247.3413731583.

The spelling of 1940689174 in words is "one billion, nine hundred forty million, six hundred eighty-nine thousand, one hundred seventy-four".