2031989354 has 16 divisors (see below), whose sum is σ = 3062324616. Its totient is φ = 1011225600.

The previous prime is 2031989353. The next prime is 2031989387. The reversal of 2031989354 is 4539891302.

It can be written as a sum of positive squares in 4 ways, for example, as 1664232025 + 367757329 = 40795^2 + 19177^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2031989353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443234 + ... + 447794.

Almost surely, 2^2031989354 is an apocalyptic number.

2031989354 is a deficient number, since it is larger than the sum of its proper divisors (1030335262).

2031989354 is a wasteful number, since it uses less digits than its factorization.

2031989354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5561.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 2031989354 is about 45077.5925932164. The cubic root of 2031989354 is about 1266.6028942809.

The spelling of 2031989354 in words is "two billion, thirty-one million, nine hundred eighty-nine thousand, three hundred fifty-four".