181485342 has 24 divisors (see below), whose sum is σ = 393523416. Its totient is φ = 60448176.

The previous prime is 181485323. The next prime is 181485347. The reversal of 181485342 is 243584181.

181485342 is a `hidden beast` number, since 1 + 81 + 48 + 534 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 181485297 and 181485306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181485347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26188 + ... + 32384.

It is an arithmetic number, because the mean of its divisors is an integer number (16396809).

Almost surely, 2^181485342 is an apocalyptic number.

181485342 is an abundant number, since it is smaller than the sum of its proper divisors (212038074).

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

181485342 is a wasteful number, since it uses less digits than its factorization.

181485342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7832 (or 7829 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 181485342 is about 13471.6495649197. The cubic root of 181485342 is about 566.1704319290.

The spelling of 181485342 in words is "one hundred eighty-one million, four hundred eighty-five thousand, three hundred forty-two".