1090324872 has 144 divisors (see below), whose sum is σ = 3699472140. Its totient is φ = 287546112.

The previous prime is 1090324871. The next prime is 1090324877. The reversal of 1090324872 is 2784230901.

It can be written as a sum of positive squares in 2 ways, for example, as 973814436 + 116510436 = 31206^2 + 10794^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1090324871) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33978 + ... + 57750.

Almost surely, 2^1090324872 is an apocalyptic number.

1090324872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1090324872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1849736070).

1090324872 is an abundant number, since it is smaller than the sum of its proper divisors (2609147268).

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

1090324872 is a wasteful number, since it uses less digits than its factorization.

1090324872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23812 (or 23798 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1090324872 is about 33020.0677164660. The cubic root of 1090324872 is about 1029.2447009325.

The spelling of 1090324872 in words is "one billion, ninety million, three hundred twenty-four thousand, eight hundred seventy-two".