1144290 has 32 divisors (see below), whose sum is σ = 3139200. Its totient is φ = 261504.

The previous prime is 1144279. The next prime is 1144291. The reversal of 1144290 is 924411.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1144291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2515 + ... + 2934.

It is an arithmetic number, because the mean of its divisors is an integer number (98100).

2^1144290 is an apocalyptic number.

1144290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1144290 is an abundant number, since it is smaller than the sum of its proper divisors (1994910).

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

1144290 is a wasteful number, since it uses less digits than its factorization.

1144290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5466.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1144290 is about 1069.7149152929. The cubic root of 1144290 is about 104.5952673200.

The spelling of 1144290 in words is "one million, one hundred forty-four thousand, two hundred ninety".