169979642 has 8 divisors (see below), whose sum is σ = 291393696. Its totient is φ = 72848412.

The previous prime is 169979633. The next prime is 169979657. The reversal of 169979642 is 246979961.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6070688 + ... + 6070715.

It is an arithmetic number, because the mean of its divisors is an integer number (36424212).

Almost surely, 2^169979642 is an apocalyptic number.

169979642 is a deficient number, since it is larger than the sum of its proper divisors (121414054).

169979642 is a wasteful number, since it uses less digits than its factorization.

169979642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12141412.

The product of its digits is 1469664, while the sum is 53.

The square root of 169979642 is about 13037.6240933692. The cubic root of 169979642 is about 553.9437117804.

The spelling of 169979642 in words is "one hundred sixty-nine million, nine hundred seventy-nine thousand, six hundred forty-two".