1144400 has 30 divisors (see below), whose sum is σ = 2750382. Its totient is φ = 457600.

The previous prime is 1144399. The next prime is 1144417. The reversal of 1144400 is 44411.

It can be written as a sum of positive squares in 3 ways, for example, as 87616 + 1056784 = 296^2 + 1028^2 .

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1031 + ... + 1830.

2^1144400 is an apocalyptic number.

1144400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144400 is an abundant number, since it is smaller than the sum of its proper divisors (1605982).

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

1144400 is a wasteful number, since it uses less digits than its factorization.

1144400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879 (or 2868 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1144400 is about 1069.7663296253. The cubic root of 1144400 is about 104.5986187754.

Adding to 1144400 its reverse (44411), we get a palindrome (1188811).

The spelling of 1144400 in words is "one million, one hundred forty-four thousand, four hundred".