1893190442 has 64 divisors (see below), whose sum is σ = 3392661888. Its totient is φ = 787564800.

The previous prime is 1893190427. The next prime is 1893190471. The reversal of 1893190442 is 2440913981.

It is a self number, because there is not a number n which added to its sum of digits gives 1893190442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7855442 + ... + 7855682.

It is an arithmetic number, because the mean of its divisors is an integer number (53010342).

Almost surely, 2^1893190442 is an apocalyptic number.

1893190442 is a deficient number, since it is larger than the sum of its proper divisors (1499471446).

1893190442 is a wasteful number, since it uses less digits than its factorization.

1893190442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 1893190442 is about 43510.8083354010. The cubic root of 1893190442 is about 1237.0808984090.

The spelling of 1893190442 in words is "one billion, eight hundred ninety-three million, one hundred ninety thousand, four hundred forty-two".