1089451332 has 18 divisors (see below), whose sum is σ = 2753890958. Its totient is φ = 363150432.

The previous prime is 1089451283. The next prime is 1089451333. The reversal of 1089451332 is 2331549801.

1089451332 is a `hidden beast` number, since 108 + 9 + 4 + 513 + 32 = 666.

It can be written as a sum of positive squares in only one way, i.e., 627803136 + 461648196 = 25056^2 + 21486^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 30262537 = 1089451332 / (1 + 0 + 8 + 9 + 4 + 5 + 1 + 3 + 3 + 2).

It is not an unprimeable number, because it can be changed into a prime (1089451333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15131233 + ... + 15131304.

Almost surely, 2^1089451332 is an apocalyptic number.

1089451332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1089451332 is an abundant number, since it is smaller than the sum of its proper divisors (1664439626).

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

1089451332 is a wasteful number, since it uses less digits than its factorization.

1089451332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30262547 (or 30262542 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1089451332 is about 33006.8376552496. The cubic root of 1089451332 is about 1028.9697594436.

It can be divided in two parts, 10894 and 51332, that added together give a palindrome (62226).

The spelling of 1089451332 in words is "one billion, eighty-nine million, four hundred fifty-one thousand, three hundred thirty-two".