1606423200 has 144 divisors (see below), whose sum is σ = 5244414336. Its totient is φ = 427110400.

The previous prime is 1606423171. The next prime is 1606423213. The reversal of 1606423200 is 23246061.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1033624 + ... + 1035176.

It is an arithmetic number, because the mean of its divisors is an integer number (36419544).

Almost surely, 2^1606423200 is an apocalyptic number.

1606423200 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 1606423200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2622207168).

1606423200 is an abundant number, since it is smaller than the sum of its proper divisors (3637991136).

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

1606423200 is a wasteful number, since it uses less digits than its factorization.

1606423200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007 (or 1994 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1606423200 is about 40080.2095802904. The cubic root of 1606423200 is about 1171.1701347680.

Adding to 1606423200 its reverse (23246061), we get a palindrome (1629669261).

The spelling of 1606423200 in words is "one billion, six hundred six million, four hundred twenty-three thousand, two hundred".