1642200 has 192 divisors, whose sum is σ = 6428160. Its totient is φ = 337920.

The previous prime is 1642187. The next prime is 1642211. The reversal of 1642200 is 22461.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1642200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71389 + ... + 71411.

It is an arithmetic number, because the mean of its divisors is an integer number (33480).

2^1642200 is an apocalyptic number.

1642200 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 1642200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3214080).

1642200 is an abundant number, since it is smaller than the sum of its proper divisors (4785960).

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

1642200 is a wasteful number, since it uses less digits than its factorization.

1642200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1642200 is about 1281.4835153056. The cubic root of 1642200 is about 117.9800789889.

Adding to 1642200 its reverse (22461), we get a palindrome (1664661).

The spelling of 1642200 in words is "one million, six hundred forty-two thousand, two hundred".