162990240 has 192 divisors, whose sum is σ = 592220160. Its totient is φ = 36910080.

The previous prime is 162990229. The next prime is 162990241. The reversal of 162990240 is 42099261.

It is not an unprimeable number, because it can be changed into a prime (162990241) 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 31 ways as a sum of consecutive naturals, for example, 601305 + ... + 601575.

It is an arithmetic number, because the mean of its divisors is an integer number (3084480).

Almost surely, 2^162990240 is an apocalyptic number.

162990240 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 162990240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296110080).

162990240 is an abundant number, since it is smaller than the sum of its proper divisors (429229920).

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

162990240 is a wasteful number, since it uses less digits than its factorization.

162990240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 162990240 is about 12766.7630979822. The cubic root of 162990240 is about 546.2446541411.

The spelling of 162990240 in words is "one hundred sixty-two million, nine hundred ninety thousand, two hundred forty".