162403400 has 48 divisors (see below), whose sum is σ = 384015600. Its totient is φ = 63855680.

The previous prime is 162403349. The next prime is 162403403. The reversal of 162403400 is 4304261.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (162403403) 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 11 ways as a sum of consecutive naturals, for example, 4919 + ... + 18681.

It is an arithmetic number, because the mean of its divisors is an integer number (8000325).

Almost surely, 2^162403400 is an apocalyptic number.

162403400 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 162403400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192007800).

162403400 is an abundant number, since it is smaller than the sum of its proper divisors (221612200).

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

162403400 is a wasteful number, since it uses less digits than its factorization.

162403400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13838 (or 13829 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 162403400 is about 12743.7592569854. The cubic root of 162403400 is about 545.5882882480.

Adding to 162403400 its reverse (4304261), we get a palindrome (166707661).

The spelling of 162403400 in words is "one hundred sixty-two million, four hundred three thousand, four hundred".