181479834 has 48 divisors (see below), whose sum is σ = 401229504. Its totient is φ = 59270400.

The previous prime is 181479829. The next prime is 181479863. The reversal of 181479834 is 438974181.

It is a happy number.

It is a super-4 number, since 4×181479834⁴ (a number of 34 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 181479834.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269322 + ... + 269994.

It is an arithmetic number, because the mean of its divisors is an integer number (8358948).

Almost surely, 2^181479834 is an apocalyptic number.

181479834 is an abundant number, since it is smaller than the sum of its proper divisors (219749670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

181479834 is a wasteful number, since it uses less digits than its factorization.

181479834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963 (or 960 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 181479834 is about 13471.4451340604. The cubic root of 181479834 is about 566.1647041969.

The spelling of 181479834 in words is "one hundred eighty-one million, four hundred seventy-nine thousand, eight hundred thirty-four".