169495940 has 12 divisors (see below), whose sum is σ = 355941516. Its totient is φ = 67798368.

The previous prime is 169495919. The next prime is 169495951. The reversal of 169495940 is 49594961.

It can be written as a sum of positive squares in 2 ways, for example, as 74511424 + 94984516 = 8632^2 + 9746^2 .

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 3 ways as a sum of consecutive naturals, for example, 4237379 + ... + 4237418.

It is an arithmetic number, because the mean of its divisors is an integer number (29661793).

Almost surely, 2^169495940 is an apocalyptic number.

169495940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

169495940 is an abundant number, since it is smaller than the sum of its proper divisors (186445576).

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

169495940 is a wasteful number, since it uses less digits than its factorization.

169495940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8474806 (or 8474804 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 169495940 is about 13019.0606419972. The cubic root of 169495940 is about 553.4177698923.

The spelling of 169495940 in words is "one hundred sixty-nine million, four hundred ninety-five thousand, nine hundred forty".