1940044356 has 36 divisors (see below), whose sum is σ = 5062197504. Its totient is φ = 625820400.

The previous prime is 1940044331. The next prime is 1940044357. The reversal of 1940044356 is 6534400491.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1940044356.

It is not an unprimeable number, because it can be changed into a prime (1940044357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 868080 + ... + 870311.

Almost surely, 2^1940044356 is an apocalyptic number.

It is an amenable number.

1940044356 is an abundant number, since it is smaller than the sum of its proper divisors (3122153148).

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

1940044356 is a wasteful number, since it uses less digits than its factorization.

1940044356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738432 (or 1738427 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1940044356 is about 44045.9346137643. The cubic root of 1940044356 is about 1247.2032096513.

The spelling of 1940044356 in words is "one billion, nine hundred forty million, forty-four thousand, three hundred fifty-six".