1085964488 has 64 divisors (see below), whose sum is σ = 2510559360. Its totient is φ = 429751296.

The previous prime is 1085964413. The next prime is 1085964491. The reversal of 1085964488 is 8844695801.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (53).

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, 39695 + ... + 61217.

It is an arithmetic number, because the mean of its divisors is an integer number (39227490).

Almost surely, 2^1085964488 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 1085964488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1255279680).

1085964488 is an abundant number, since it is smaller than the sum of its proper divisors (1424594872).

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

1085964488 is a wasteful number, since it uses less digits than its factorization.

1085964488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21606 (or 21602 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 53.

The square root of 1085964488 is about 32953.9752988922. The cubic root of 1085964488 is about 1027.8708296573.

The spelling of 1085964488 in words is "one billion, eighty-five million, nine hundred sixty-four thousand, four hundred eighty-eight".