162785980 has 48 divisors (see below), whose sum is σ = 392716800. Its totient is φ = 55522368.

The previous prime is 162785951. The next prime is 162785983. The reversal of 162785980 is 89587261.

It is a self number, because there is not a number n which added to its sum of digits gives 162785980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162785983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24939 + ... + 30781.

It is an arithmetic number, because the mean of its divisors is an integer number (8181600).

Almost surely, 2^162785980 is an apocalyptic number.

162785980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162785980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196358400).

162785980 is an abundant number, since it is smaller than the sum of its proper divisors (229930820).

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

162785980 is a wasteful number, since it uses less digits than its factorization.

162785980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6058 (or 6056 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 162785980 is about 12758.7609116246. The cubic root of 162785980 is about 546.0163734484.

The spelling of 162785980 in words is "one hundred sixty-two million, seven hundred eighty-five thousand, nine hundred eighty".