1152267444 has 120 divisors (see below), whose sum is σ = 3114574848. Its totient is φ = 371226240.

The previous prime is 1152267443. The next prime is 1152267481. The reversal of 1152267444 is 4447622511.

1152267444 is a `hidden beast` number, since 1 + 152 + 2 + 67 + 444 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1152267399 and 1152267408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152267443) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1686727 + ... + 1687409.

Almost surely, 2^1152267444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1152267444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1557287424).

1152267444 is an abundant number, since it is smaller than the sum of its proper divisors (1962307404).

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

1152267444 is a wasteful number, since it uses less digits than its factorization.

1152267444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 856 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 1152267444 is about 33945.0650905253. The cubic root of 1152267444 is about 1048.3776742725.

Adding to 1152267444 its reverse (4447622511), we get a palindrome (5599889955).

The spelling of 1152267444 in words is "one billion, one hundred fifty-two million, two hundred sixty-seven thousand, four hundred forty-four".