1089529406 has 12 divisors (see below), whose sum is σ = 1901117808. Its totient is φ = 466941132.

The previous prime is 1089529387. The next prime is 1089529409. The reversal of 1089529406 is 6049259801.

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 Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089529409) 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, 5558726 + ... + 5558921.

It is an arithmetic number, because the mean of its divisors is an integer number (158426484).

Almost surely, 2^1089529406 is an apocalyptic number.

1089529406 is a deficient number, since it is larger than the sum of its proper divisors (811588402).

1089529406 is a wasteful number, since it uses less digits than its factorization.

1089529406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11117663 (or 11117656 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 1089529406 is about 33008.0203283990. The cubic root of 1089529406 is about 1028.9943387474.

The spelling of 1089529406 in words is "one billion, eighty-nine million, five hundred twenty-nine thousand, four hundred six".