1144390285 has 8 divisors (see below), whose sum is σ = 1379427840. Its totient is φ = 911405904.

The previous prime is 1144390259. The next prime is 1144390367. The reversal of 1144390285 is 5820934411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144390285 - 2⁵ = 1144390253 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 512065 + ... + 514294.

It is an arithmetic number, because the mean of its divisors is an integer number (172428480).

Almost surely, 2^1144390285 is an apocalyptic number.

It is an amenable number.

1144390285 is a deficient number, since it is larger than the sum of its proper divisors (235037555).

1144390285 is a wasteful number, since it uses less digits than its factorization.

1144390285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026587.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 1144390285 is about 33828.8380675423. The cubic root of 1144390285 is about 1045.9832278958.

The spelling of 1144390285 in words is "one billion, one hundred forty-four million, three hundred ninety thousand, two hundred eighty-five".