1154440530 has 48 divisors (see below), whose sum is σ = 3005360280. Its totient is φ = 307459584.

The previous prime is 1154440523. The next prime is 1154440531. The reversal of 1154440530 is 350444511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 923005161 + 231435369 = 30381^2 + 15213^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1154440494 and 1154440503.

It is not an unprimeable number, because it can be changed into a prime (1154440531) 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, 66874 + ... + 82346.

Almost surely, 2^1154440530 is an apocalyptic number.

1154440530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1154440530 is an abundant number, since it is smaller than the sum of its proper divisors (1850919750).

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

1154440530 is a wasteful number, since it uses less digits than its factorization.

1154440530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16315 (or 16312 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1154440530 is about 33977.0588780136. The cubic root of 1154440530 is about 1049.0363130805.

The spelling of 1154440530 in words is "one billion, one hundred fifty-four million, four hundred forty thousand, five hundred thirty".