162980640 has 192 divisors, whose sum is σ = 589317120. Its totient is φ = 42024960.

The previous prime is 162980611. The next prime is 162980641. The reversal of 162980640 is 46089261.

162980640 is a `hidden beast` number, since 1 + 6 + 2 + 9 + 8 + 0 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 162980595 and 162980604.

It is not an unprimeable number, because it can be changed into a prime (162980641) 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 31 ways as a sum of consecutive naturals, for example, 133312 + ... + 134528.

It is an arithmetic number, because the mean of its divisors is an integer number (3069360).

Almost surely, 2^162980640 is an apocalyptic number.

162980640 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 162980640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294658560).

162980640 is an abundant number, since it is smaller than the sum of its proper divisors (426336480).

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

162980640 is a wasteful number, since it uses less digits than its factorization.

162980640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 162980640 is about 12766.3871161735. The cubic root of 162980640 is about 546.2339294670.

The spelling of 162980640 in words is "one hundred sixty-two million, nine hundred eighty thousand, six hundred forty".