1981434314 has 8 divisors (see below), whose sum is σ = 3101375520. Its totient is φ = 947642476.

The previous prime is 1981434289. The next prime is 1981434317. The reversal of 1981434314 is 4134341891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×1981434314³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1981434317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21537284 + ... + 21537375.

It is an arithmetic number, because the mean of its divisors is an integer number (387671940).

Almost surely, 2^1981434314 is an apocalyptic number.

1981434314 is a deficient number, since it is larger than the sum of its proper divisors (1119941206).

1981434314 is a wasteful number, since it uses less digits than its factorization.

1981434314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43074684.

The product of its digits is 41472, while the sum is 38.

The square root of 1981434314 is about 44513.3049098806. The cubic root of 1981434314 is about 1256.0103743210.

The spelling of 1981434314 in words is "one billion, nine hundred eighty-one million, four hundred thirty-four thousand, three hundred fourteen".