1893740057 has 8 divisors (see below), whose sum is σ = 2066250720. Its totient is φ = 1721288160.

The previous prime is 1893740033. The next prime is 1893740083. The reversal of 1893740057 is 7500473981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1893740057 - 2⁸ = 1893739801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1893740257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78338 + ... + 99620.

It is an arithmetic number, because the mean of its divisors is an integer number (258281340).

Almost surely, 2^1893740057 is an apocalyptic number.

It is an amenable number.

1893740057 is a deficient number, since it is larger than the sum of its proper divisors (172510663).

1893740057 is a wasteful number, since it uses less digits than its factorization.

1893740057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29383.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 1893740057 is about 43517.1237215880. The cubic root of 1893740057 is about 1237.2005997726.

The spelling of 1893740057 in words is "one billion, eight hundred ninety-three million, seven hundred forty thousand, fifty-seven".