1940558128 has 20 divisors (see below), whose sum is σ = 3760575280. Its totient is φ = 970087104.

The previous prime is 1940558089. The next prime is 1940558131. The reversal of 1940558128 is 8218550491.

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, 107413 + ... + 124171.

It is an arithmetic number, because the mean of its divisors is an integer number (188028764).

Almost surely, 2^1940558128 is an apocalyptic number.

It is an amenable number.

1940558128 is a deficient number, since it is larger than the sum of its proper divisors (1820017152).

1940558128 is a wasteful number, since it uses less digits than its factorization.

1940558128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24004 (or 23998 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 43.

The square root of 1940558128 is about 44051.7664572035. The cubic root of 1940558128 is about 1247.3132967445.

The spelling of 1940558128 in words is "one billion, nine hundred forty million, five hundred fifty-eight thousand, one hundred twenty-eight".