1893291242 has 4 divisors (see below), whose sum is σ = 2839936866. Its totient is φ = 946645620.

The previous prime is 1893291223. The next prime is 1893291251. The reversal of 1893291242 is 2421923981.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1862699281 + 30591961 = 43159^2 + 5531^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1893291242.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473322809 + ... + 473322812.

Almost surely, 2^1893291242 is an apocalyptic number.

1893291242 is a deficient number, since it is larger than the sum of its proper divisors (946645624).

1893291242 is an equidigital number, since it uses as much as digits as its factorization.

1893291242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946645623.

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

The square root of 1893291242 is about 43511.9666528646. The cubic root of 1893291242 is about 1237.1028535063.

The spelling of 1893291242 in words is "one billion, eight hundred ninety-three million, two hundred ninety-one thousand, two hundred forty-two".