169320920 has 16 divisors (see below), whose sum is σ = 380972160. Its totient is φ = 67728352.

The previous prime is 169320919. The next prime is 169320923. The reversal of 169320920 is 29023961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169320923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2116472 + ... + 2116551.

It is an arithmetic number, because the mean of its divisors is an integer number (23810760).

Almost surely, 2^169320920 is an apocalyptic number.

169320920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

169320920 is an abundant number, since it is smaller than the sum of its proper divisors (211651240).

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

169320920 is a wasteful number, since it uses less digits than its factorization.

169320920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4233034 (or 4233030 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 169320920 is about 13012.3372228051. The cubic root of 169320920 is about 553.2272195349.

The spelling of 169320920 in words is "one hundred sixty-nine million, three hundred twenty thousand, nine hundred twenty".