169791042 has 8 divisors (see below), whose sum is σ = 339582096. Its totient is φ = 56597012.

The previous prime is 169790989. The next prime is 169791059. The reversal of 169791042 is 240197961.

It is a sphenic number, since it is the product of 3 distinct primes.

169791042 is an admirable number.

It is a super-4 number, since 4×169791042⁴ (a number of 34 digits) contains 4444 as substring.

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 3 ways as a sum of consecutive naturals, for example, 14149248 + ... + 14149259.

It is an arithmetic number, because the mean of its divisors is an integer number (42447762).

Almost surely, 2^169791042 is an apocalyptic number.

169791042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

169791042 is a wasteful number, since it uses less digits than its factorization.

169791042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28298512.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 169791042 is about 13030.3891730063. The cubic root of 169791042 is about 553.7387608696.

The spelling of 169791042 in words is "one hundred sixty-nine million, seven hundred ninety-one thousand, forty-two".