1967987044 has 27 divisors (see below), whose sum is σ = 3536562603. Its totient is φ = 958219200.

The previous prime is 1967987041. The next prime is 1967987051. The reversal of 1967987044 is 4407897691.

The square root of 1967987044 is 44362.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 754161444 + 1213825600 = 27462^2 + 34840^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1967987041) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3637414 + ... + 3637954.

Almost surely, 2^1967987044 is an apocalyptic number.

1967987044 is the 44362-nd square number.

It is an amenable number.

1967987044 is a deficient number, since it is larger than the sum of its proper divisors (1568575559).

1967987044 is an frugal number, since it uses more digits than its factorization.

1967987044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 55.

The cubic root of 1967987044 is about 1253.1625612040.

The spelling of 1967987044 in words is "one billion, nine hundred sixty-seven million, nine hundred eighty-seven thousand, forty-four".