169970394 has 48 divisors (see below), whose sum is σ = 377447616. Its totient is φ = 50983680.

The previous prime is 169970351. The next prime is 169970399. The reversal of 169970394 is 493079961.

It is not an unprimeable number, because it can be changed into a prime (169970399) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73642 + ... + 75914.

It is an arithmetic number, because the mean of its divisors is an integer number (7863492).

Almost surely, 2^169970394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169970394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188723808).

169970394 is an abundant number, since it is smaller than the sum of its proper divisors (207477222).

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

169970394 is a wasteful number, since it uses less digits than its factorization.

169970394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403 (or 2392 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 48.

The square root of 169970394 is about 13037.2694226974. The cubic root of 169970394 is about 553.9336655492.

The spelling of 169970394 in words is "one hundred sixty-nine million, nine hundred seventy thousand, three hundred ninety-four".