1227400 has 72 divisors (see below), whose sum is σ = 3188970. Its totient is φ = 437760.

The previous prime is 1227379. The next prime is 1227407. The reversal of 1227400 is 47221.

It can be written as a sum of positive squares in 3 ways, for example, as 1052676 + 174724 = 1026^2 + 418^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227407) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 64591 + ... + 64609.

2^1227400 is an apocalyptic number.

1227400 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 1227400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1594485).

1227400 is an abundant number, since it is smaller than the sum of its proper divisors (1961570).

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

1227400 is a wasteful number, since it uses less digits than its factorization.

1227400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 1227400 is about 1107.8808600206. The cubic root of 1227400 is about 107.0685792058.

The spelling of 1227400 in words is "one million, two hundred twenty-seven thousand, four hundred".