1961044372 has 12 divisors (see below), whose sum is σ = 3922088800. Its totient is φ = 840447576.

The previous prime is 1961044357. The next prime is 1961044433. The reversal of 1961044372 is 2734401691.

1961044372 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35018622 + ... + 35018677.

Almost surely, 2^1961044372 is an apocalyptic number.

It is an amenable number.

1961044372 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1961044372 is a wasteful number, since it uses less digits than its factorization.

1961044372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70037310 (or 70037308 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 1961044372 is about 44283.6806510028. The cubic root of 1961044372 is about 1251.6871877202.

The spelling of 1961044372 in words is "one billion, nine hundred sixty-one million, forty-four thousand, three hundred seventy-two".