1967989432 has 8 divisors (see below), whose sum is σ = 3689980200. Its totient is φ = 983994712.

The previous prime is 1967989409. The next prime is 1967989433. The reversal of 1967989432 is 2349897691.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1967989433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122999332 + ... + 122999347.

It is an arithmetic number, because the mean of its divisors is an integer number (461247525).

Almost surely, 2^1967989432 is an apocalyptic number.

It is an amenable number.

1967989432 is a deficient number, since it is larger than the sum of its proper divisors (1721990768).

1967989432 is a wasteful number, since it uses less digits than its factorization.

1967989432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245998685 (or 245998681 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 58.

The square root of 1967989432 is about 44362.0269149190. The cubic root of 1967989432 is about 1253.1630680757.

The spelling of 1967989432 in words is "one billion, nine hundred sixty-seven million, nine hundred eighty-nine thousand, four hundred thirty-two".