1154442040 has 16 divisors (see below), whose sum is σ = 2597494680. Its totient is φ = 461776800.

The previous prime is 1154442011. The next prime is 1154442083. The reversal of 1154442040 is 402444511.

It is a junction number, because it is equal to n+sod(n) for n = 1154441996 and 1154442014.

It is a congruent number.

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, 14430486 + ... + 14430565.

Almost surely, 2^1154442040 is an apocalyptic number.

1154442040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1154442040 is an abundant number, since it is smaller than the sum of its proper divisors (1443052640).

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

1154442040 is a wasteful number, since it uses less digits than its factorization.

1154442040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28861062 (or 28861058 counting only the distinct ones).

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

The square root of 1154442040 is about 33977.0810988819. The cubic root of 1154442040 is about 1049.0367704576.

Adding to 1154442040 its reverse (402444511), we get a palindrome (1556886551).

The spelling of 1154442040 in words is "one billion, one hundred fifty-four million, four hundred forty-two thousand, forty".