1089155232 has 72 divisors (see below), whose sum is σ = 3378866400. Its totient is φ = 330046080.

The previous prime is 1089155231. The next prime is 1089155237. The reversal of 1089155232 is 2325519801.

1089155232 is a `hidden beast` number, since 10 + 8 + 91 + 552 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is not an unprimeable number, because it can be changed into a prime (1089155231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168732 + ... + 175067.

It is an arithmetic number, because the mean of its divisors is an integer number (46928700).

Almost surely, 2^1089155232 is an apocalyptic number.

1089155232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1089155232 is an abundant number, since it is smaller than the sum of its proper divisors (2289711168).

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

1089155232 is a wasteful number, since it uses less digits than its factorization.

1089155232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343826 (or 343815 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 1089155232 is about 33002.3519161892. The cubic root of 1089155232 is about 1028.8765303892.

The spelling of 1089155232 in words is "one billion, eighty-nine million, one hundred fifty-five thousand, two hundred thirty-two".