1144278 has 24 divisors (see below), whose sum is σ = 2501616. Its totient is φ = 378000.

The previous prime is 1144277. The next prime is 1144279. The reversal of 1144278 is 8724411.

It is an interprime number because it is at equal distance from previous prime (1144277) and next prime (1144279).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2508 + ... + 2928.

It is an arithmetic number, because the mean of its divisors is an integer number (104234).

2^1144278 is an apocalyptic number.

1144278 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1144278 is an abundant number, since it is smaller than the sum of its proper divisors (1357338).

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

1144278 is a wasteful number, since it uses less digits than its factorization.

1144278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 577 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 1144278 is about 1069.7093063071. The cubic root of 1144278 is about 104.5949016937.

Adding to 1144278 its reverse (8724411), we get a palindrome (9868689).

The spelling of 1144278 in words is "one million, one hundred forty-four thousand, two hundred seventy-eight".