169009734 has 16 divisors (see below), whose sum is σ = 339624000. Its totient is φ = 56069160.

The previous prime is 169009723. The next prime is 169009759. The reversal of 169009734 is 437900961.

It is a junction number, because it is equal to n+sod(n) for n = 169009692 and 169009701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65484 + ... + 68015.

It is an arithmetic number, because the mean of its divisors is an integer number (21226500).

Almost surely, 2^169009734 is an apocalyptic number.

169009734 is an abundant number, since it is smaller than the sum of its proper divisors (170614266).

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

169009734 is a wasteful number, since it uses less digits than its factorization.

169009734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133715.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 169009734 is about 13000.3743792246. The cubic root of 169009734 is about 552.8880959755. Note that the first 3 decimals are identical.

The spelling of 169009734 in words is "one hundred sixty-nine million, nine thousand, seven hundred thirty-four".