169007942 has 16 divisors (see below), whose sum is σ = 258412032. Its totient is φ = 82878720.

The previous prime is 169007941. The next prime is 169007957. The reversal of 169007942 is 249700961.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 169007896 and 169007905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169007941) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 44918 + ... + 48534.

It is an arithmetic number, because the mean of its divisors is an integer number (16150752).

Almost surely, 2^169007942 is an apocalyptic number.

169007942 is a deficient number, since it is larger than the sum of its proper divisors (89404090).

169007942 is a wasteful number, since it uses less digits than its factorization.

169007942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4063.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 169007942 is about 13000.3054579498. The cubic root of 169007942 is about 552.8861418889.

It can be divided in two parts, 16900 and 7942, that added together give a palindrome (24842).

The spelling of 169007942 in words is "one hundred sixty-nine million, seven thousand, nine hundred forty-two".