1641200 has 60 divisors (see below), whose sum is σ = 4312968. Its totient is φ = 595200.

The previous prime is 1641161. The next prime is 1641217. The reversal of 1641200 is 21461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4214 + ... + 4586.

2^1641200 is an apocalyptic number.

1641200 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 1641200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2156484).

1641200 is an abundant number, since it is smaller than the sum of its proper divisors (2671768).

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

1641200 is a wasteful number, since it uses less digits than its factorization.

1641200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1641200 is about 1281.0932830985. The cubic root of 1641200 is about 117.9561265603.

Adding to 1641200 its reverse (21461), we get a palindrome (1662661).

The spelling of 1641200 in words is "one million, six hundred forty-one thousand, two hundred".