1144460 has 12 divisors (see below), whose sum is σ = 2403408. Its totient is φ = 457776.

The previous prime is 1144453. The next prime is 1144477. The reversal of 1144460 is 644411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 57223 = 1144460 / (1 + 1 + 4 + 4 + 4 + 6 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28592 + ... + 28631.

It is an arithmetic number, because the mean of its divisors is an integer number (200284).

2^1144460 is an apocalyptic number.

1144460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144460 is an abundant number, since it is smaller than the sum of its proper divisors (1258948).

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

1144460 is a wasteful number, since it uses less digits than its factorization.

1144460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57232 (or 57230 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1144460 is about 1069.7943727652. The cubic root of 1144460 is about 104.6004467515.

Adding to 1144460 its reverse (644411), we get a palindrome (1788871).

The spelling of 1144460 in words is "one million, one hundred forty-four thousand, four hundred sixty".