1791082438 has 4 divisors (see below), whose sum is σ = 2686623660. Its totient is φ = 895541218.

The previous prime is 1791082429. The next prime is 1791082451. The reversal of 1791082438 is 8342801971.

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

It is a junction number, because it is equal to n+sod(n) for n = 1791082394 and 1791082403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447770608 + ... + 447770611.

It is an arithmetic number, because the mean of its divisors is an integer number (671655915).

Almost surely, 2^1791082438 is an apocalyptic number.

1791082438 is a deficient number, since it is larger than the sum of its proper divisors (895541222).

1791082438 is an equidigital number, since it uses as much as digits as its factorization.

1791082438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895541221.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 1791082438 is about 42321.1819069364. The cubic root of 1791082438 is about 1214.4282424454.

The spelling of 1791082438 in words is "one billion, seven hundred ninety-one million, eighty-two thousand, four hundred thirty-eight".