1140442225 has 24 divisors (see below), whose sum is σ = 1603091840. Its totient is φ = 797843520.

The previous prime is 1140442223. The next prime is 1140442241. The reversal of 1140442225 is 5222440411.

It is not a de Polignac number, because 1140442225 - 2¹ = 1140442223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 1140442225.

It is not an unprimeable number, because it can be changed into a prime (1140442223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86169 + ... + 98518.

Almost surely, 2^1140442225 is an apocalyptic number.

It is an amenable number.

1140442225 is a deficient number, since it is larger than the sum of its proper divisors (462649615).

1140442225 is a wasteful number, since it uses less digits than its factorization.

1140442225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184729 (or 184724 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 1140442225 is about 33770.4341843572. The cubic root of 1140442225 is about 1044.7789876230.

Adding to 1140442225 its reverse (5222440411), we get a palindrome (6362882636).

The spelling of 1140442225 in words is "one billion, one hundred forty million, four hundred forty-two thousand, two hundred twenty-five".