162204400 has 120 divisors (see below), whose sum is σ = 409370624. Its totient is φ = 61689600.

The previous prime is 162204391. The next prime is 162204407. The reversal of 162204400 is 4402261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162204407) 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 23 ways as a sum of consecutive naturals, for example, 1277137 + ... + 1277263.

Almost surely, 2^162204400 is an apocalyptic number.

162204400 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 162204400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204685312).

162204400 is an abundant number, since it is smaller than the sum of its proper divisors (247166224).

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

162204400 is a wasteful number, since it uses less digits than its factorization.

162204400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 162204400 is about 12735.9491205014. The cubic root of 162204400 is about 545.3653527561.

Adding to 162204400 its reverse (4402261), we get a palindrome (166606661).

The spelling of 162204400 in words is "one hundred sixty-two million, two hundred four thousand, four hundred".