169842940 has 24 divisors (see below), whose sum is σ = 356927760. Its totient is φ = 67888128.

The previous prime is 169842931. The next prime is 169842943. The reversal of 169842940 is 49248961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169842943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40251 + ... + 44269.

It is an arithmetic number, because the mean of its divisors is an integer number (14871990).

Almost surely, 2^169842940 is an apocalyptic number.

169842940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

169842940 is an abundant number, since it is smaller than the sum of its proper divisors (187084820).

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

169842940 is a wasteful number, since it uses less digits than its factorization.

169842940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6141 (or 6139 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 169842940 is about 13032.3804425746. The cubic root of 169842940 is about 553.7951733603.

The spelling of 169842940 in words is "one hundred sixty-nine million, eight hundred forty-two thousand, nine hundred forty".