1940889824 has 24 divisors (see below), whose sum is σ = 4022240040. Its totient is φ = 919368576.

The previous prime is 1940889817. The next prime is 1940889851. The reversal of 1940889824 is 4289880491.

It is a happy 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, 1595519 + ... + 1596734.

It is an arithmetic number, because the mean of its divisors is an integer number (167593335).

Almost surely, 2^1940889824 is an apocalyptic number.

It is an amenable number.

1940889824 is an abundant number, since it is smaller than the sum of its proper divisors (2081350216).

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

1940889824 is a wasteful number, since it uses less digits than its factorization.

1940889824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192282 (or 3192274 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 53.

The square root of 1940889824 is about 44055.5311396878. The cubic root of 1940889824 is about 1247.3843596782.

The spelling of 1940889824 in words is "one billion, nine hundred forty million, eight hundred eighty-nine thousand, eight hundred twenty-four".