1969044941 has 4 divisors (see below), whose sum is σ = 2084871132. Its totient is φ = 1853218752.

The previous prime is 1969044919. The next prime is 1969044971. The reversal of 1969044941 is 1494409691.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1494409691 = 499 ⋅2994809.

It can be written as a sum of positive squares in 2 ways, for example, as 1394723716 + 574321225 = 37346^2 + 23965^2 .

It is a cyclic number.

It is not a de Polignac number, because 1969044941 - 2⁶ = 1969044877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1969044911) 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, 57913070 + ... + 57913103.

It is an arithmetic number, because the mean of its divisors is an integer number (521217783).

Almost surely, 2^1969044941 is an apocalyptic number.

It is an amenable number.

1969044941 is a deficient number, since it is larger than the sum of its proper divisors (115826191).

1969044941 is a wasteful number, since it uses less digits than its factorization.

1969044941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115826190.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 1969044941 is about 44373.9218573252. The cubic root of 1969044941 is about 1253.3870680067.

The spelling of 1969044941 in words is "one billion, nine hundred sixty-nine million, forty-four thousand, nine hundred forty-one".