1873817042 has 4 divisors (see below), whose sum is σ = 2810725566. Its totient is φ = 936908520.

The previous prime is 1873817039. The next prime is 1873817051. The reversal of 1873817042 is 2407183781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2407183781 = 127 ⋅18954203.

It can be written as a sum of positive squares in only one way, i.e., 1872379441 + 1437601 = 43271^2 + 1199^2 .

It is a super-2 number, since 2×1873817042² = 7022380613779259528, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 468454259 + ... + 468454262.

Almost surely, 2^1873817042 is an apocalyptic number.

1873817042 is a deficient number, since it is larger than the sum of its proper divisors (936908524).

1873817042 is an equidigital number, since it uses as much as digits as its factorization.

1873817042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936908523.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 1873817042 is about 43287.6084116459. The cubic root of 1873817042 is about 1232.8466559152.

The spelling of 1873817042 in words is "one billion, eight hundred seventy-three million, eight hundred seventeen thousand, forty-two".