162039980 has 24 divisors (see below), whose sum is σ = 358194480. Its totient is φ = 61404480.

The previous prime is 162039979. The next prime is 162039989. The reversal of 162039980 is 89930261.

162039980 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

162039980 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (162039989) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 212831 + ... + 213590.

It is an arithmetic number, because the mean of its divisors is an integer number (14924770).

Almost surely, 2^162039980 is an apocalyptic number.

162039980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162039980 is an abundant number, since it is smaller than the sum of its proper divisors (196154500).

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

162039980 is a wasteful number, since it uses less digits than its factorization.

162039980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426449 (or 426447 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 162039980 is about 12729.4925271984. The cubic root of 162039980 is about 545.1810189026.

The spelling of 162039980 in words is "one hundred sixty-two million, thirty-nine thousand, nine hundred eighty".