162449920 has 160 divisors (see below), whose sum is σ = 424258560. Its totient is φ = 59473920.

The previous prime is 162449899. The next prime is 162449921. The reversal of 162449920 is 29944261.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a self number, because there is not a number n which added to its sum of digits gives 162449920.

It is not an unprimeable number, because it can be changed into a prime (162449921) 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 15 ways as a sum of consecutive naturals, for example, 1825236 + ... + 1825324.

It is an arithmetic number, because the mean of its divisors is an integer number (2651616).

Almost surely, 2^162449920 is an apocalyptic number.

162449920 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 162449920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212129280).

162449920 is an abundant number, since it is smaller than the sum of its proper divisors (261808640).

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

162449920 is an equidigital number, since it uses as much as digits as its factorization.

162449920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 162449920 is about 12745.5843334074. The cubic root of 162449920 is about 545.6403773548.

The spelling of 162449920 in words is "one hundred sixty-two million, four hundred forty-nine thousand, nine hundred twenty".