1089249524 has 24 divisors (see below), whose sum is σ = 2083787328. Its totient is φ = 494087040.

The previous prime is 1089249509. The next prime is 1089249529. The reversal of 1089249524 is 4259429801.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089249529) 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 7 ways as a sum of consecutive naturals, for example, 3989 + ... + 46844.

It is an arithmetic number, because the mean of its divisors is an integer number (86824472).

Almost surely, 2^1089249524 is an apocalyptic number.

It is an amenable number.

1089249524 is a deficient number, since it is larger than the sum of its proper divisors (994537804).

1089249524 is a wasteful number, since it uses less digits than its factorization.

1089249524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51335 (or 51333 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 1089249524 is about 33003.7804501242. The cubic root of 1089249524 is about 1028.9062206860.

The spelling of 1089249524 in words is "one billion, eighty-nine million, two hundred forty-nine thousand, five hundred twenty-four".