1154244540 has 48 divisors (see below), whose sum is σ = 3237363360. Its totient is φ = 307276800.

The previous prime is 1154244527. The next prime is 1154244557. The reversal of 1154244540 is 454424511.

It is a super-3 number, since 3×1154244540³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1154244498 and 1154244507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20056 + ... + 52064.

It is an arithmetic number, because the mean of its divisors is an integer number (67445070).

Almost surely, 2^1154244540 is an apocalyptic number.

1154244540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1154244540 is an abundant number, since it is smaller than the sum of its proper divisors (2083118820).

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

1154244540 is a wasteful number, since it uses less digits than its factorization.

1154244540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32622 (or 32620 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 1154244540 is about 33974.1746036604. The cubic root of 1154244540 is about 1048.9769445645.

The spelling of 1154244540 in words is "one billion, one hundred fifty-four million, two hundred forty-four thousand, five hundred forty".