1831730038 has 4 divisors (see below), whose sum is σ = 2747595060. Its totient is φ = 915865018.

The previous prime is 1831730027. The next prime is 1831730053. The reversal of 1831730038 is 8300371381.

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

It is a super-2 number, since 2×1831730038² = 6710469864222962888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1831729985 and 1831730012.

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, 457932508 + ... + 457932511.

It is an arithmetic number, because the mean of its divisors is an integer number (686898765).

Almost surely, 2^1831730038 is an apocalyptic number.

1831730038 is a deficient number, since it is larger than the sum of its proper divisors (915865022).

1831730038 is an equidigital number, since it uses as much as digits as its factorization.

1831730038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915865021.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 1831730038 is about 42798.7153779176. The cubic root of 1831730038 is about 1223.5465283553.

The spelling of 1831730038 in words is "one billion, eight hundred thirty-one million, seven hundred thirty thousand, thirty-eight".