1099231452 has 48 divisors (see below), whose sum is σ = 3108940800. Its totient is φ = 333100080.

The previous prime is 1099231439. The next prime is 1099231459. The reversal of 1099231452 is 2541329901.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099231459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461452 + ... + 463827.

It is an arithmetic number, because the mean of its divisors is an integer number (64769600).

Almost surely, 2^1099231452 is an apocalyptic number.

1099231452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1099231452 is an abundant number, since it is smaller than the sum of its proper divisors (2009709348).

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

1099231452 is a wasteful number, since it uses less digits than its factorization.

1099231452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925303 (or 925295 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1099231452 is about 33154.6595820256. The cubic root of 1099231452 is about 1032.0396482874.

The spelling of 1099231452 in words is "one billion, ninety-nine million, two hundred thirty-one thousand, four hundred fifty-two".