1089964652 has 48 divisors (see below), whose sum is σ = 2268000000. Its totient is φ = 448440384.

The previous prime is 1089964649. The next prime is 1089964661. The reversal of 1089964652 is 2564699801.

It is a super-2 number, since 2×1089964652² = 2376045885218962208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1089964652.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141599 + ... + 149097.

It is an arithmetic number, because the mean of its divisors is an integer number (47250000).

Almost surely, 2^1089964652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1089964652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1134000000).

1089964652 is an abundant number, since it is smaller than the sum of its proper divisors (1178035348).

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

1089964652 is a wasteful number, since it uses less digits than its factorization.

1089964652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7718 (or 7716 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 1089964652 is about 33014.6127040739. The cubic root of 1089964652 is about 1029.1313416415.

The spelling of 1089964652 in words is "one billion, eighty-nine million, nine hundred sixty-four thousand, six hundred fifty-two".