1155436284 has 48 divisors (see below), whose sum is σ = 2865524480. Its totient is φ = 361324800.

The previous prime is 1155436253. The next prime is 1155436301. The reversal of 1155436284 is 4826345511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1117 + ... + 48084.

Almost surely, 2^1155436284 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 1155436284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1432762240).

1155436284 is an abundant number, since it is smaller than the sum of its proper divisors (1710088196).

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

1155436284 is a wasteful number, since it uses less digits than its factorization.

1155436284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49330 (or 49328 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 1155436284 is about 33991.7090479429. The cubic root of 1155436284 is about 1049.3378391991.

The spelling of 1155436284 in words is "one billion, one hundred fifty-five million, four hundred thirty-six thousand, two hundred eighty-four".