162003900 has 72 divisors (see below), whose sum is σ = 470525440. Its totient is φ = 43035840.

The previous prime is 162003893. The next prime is 162003917. The reversal of 162003900 is 9300261.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91221 + ... + 92979.

Almost surely, 2^162003900 is an apocalyptic number.

162003900 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 162003900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235262720).

162003900 is an abundant number, since it is smaller than the sum of its proper divisors (308521540).

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

162003900 is a wasteful number, since it uses less digits than its factorization.

162003900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083 (or 2076 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 162003900 is about 12728.0752669050. The cubic root of 162003900 is about 545.1405523641.

It can be divided in two parts, 16200 and 3900, that added together give a triangular number (20100 = T₂₀₀).

The spelling of 162003900 in words is "one hundred sixty-two million, three thousand, nine hundred".