1098532864 has 192 divisors, whose sum is σ = 2685795840. Its totient is φ = 446054400.

The previous prime is 1098532819. The next prime is 1098532867. The reversal of 1098532864 is 4682358901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098532867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35436529 + ... + 35436559.

It is an arithmetic number, because the mean of its divisors is an integer number (13988520).

Almost surely, 2^1098532864 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 1098532864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1342897920).

1098532864 is an abundant number, since it is smaller than the sum of its proper divisors (1587262976).

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

1098532864 is an equidigital number, since it uses as much as digits as its factorization.

1098532864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 1098532864 is about 33144.1226162347. The cubic root of 1098532864 is about 1031.8209732917.

The spelling of 1098532864 in words is "one billion, ninety-eight million, five hundred thirty-two thousand, eight hundred sixty-four".