162421224 has 64 divisors (see below), whose sum is σ = 466214400. Its totient is φ = 46190784.

The previous prime is 162421219. The next prime is 162421241. The reversal of 162421224 is 422124261.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 162421194 and 162421203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36007 + ... + 40265.

It is an arithmetic number, because the mean of its divisors is an integer number (7284600).

Almost surely, 2^162421224 is an apocalyptic number.

162421224 is a gapful number since it is divisible by the number (14) 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 162421224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233107200).

162421224 is an abundant number, since it is smaller than the sum of its proper divisors (303793176).

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

162421224 is a wasteful number, since it uses less digits than its factorization.

162421224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4502 (or 4498 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 162421224 is about 12744.4585604882. The cubic root of 162421224 is about 545.6082472101.

Adding to 162421224 its reverse (422124261), we get a palindrome (584545485).

The spelling of 162421224 in words is "one hundred sixty-two million, four hundred twenty-one thousand, two hundred twenty-four".