1830155944 has 16 divisors (see below), whose sum is σ = 3633398100. Its totient is φ = 861249792.

The previous prime is 1830155941. The next prime is 1830155989. The reversal of 1830155944 is 4495510381.

1830155944 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in 2 ways, for example, as 1731392100 + 98763844 = 41610^2 + 9938^2 .

It is a super-2 number, since 2×1830155944² = 6698941558717062272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1830155897 and 1830155906.

It is not an unprimeable number, because it can be changed into a prime (1830155941) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6728379 + ... + 6728650.

Almost surely, 2^1830155944 is an apocalyptic number.

It is an amenable number.

1830155944 is a deficient number, since it is larger than the sum of its proper divisors (1803242156).

1830155944 is a wasteful number, since it uses less digits than its factorization.

1830155944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13457052 (or 13457048 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 1830155944 is about 42780.3219249224. The cubic root of 1830155944 is about 1223.1959437227.

The spelling of 1830155944 in words is "one billion, eight hundred thirty million, one hundred fifty-five thousand, nine hundred forty-four".