1090861824 has 144 divisors (see below), whose sum is σ = 3212203232. Its totient is φ = 326467584.

The previous prime is 1090861819. The next prime is 1090861829. The reversal of 1090861824 is 4281680901.

It is an interprime number because it is at equal distance from previous prime (1090861819) and next prime (1090861829).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1090861829) 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, 367932 + ... + 370884.

Almost surely, 2^1090861824 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 1090861824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1606101616).

1090861824 is an abundant number, since it is smaller than the sum of its proper divisors (2121341408).

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

1090861824 is a wasteful number, since it uses less digits than its factorization.

1090861824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022 (or 3008 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 1090861824 is about 33028.1974076697. The cubic root of 1090861824 is about 1029.4136304928.

The spelling of 1090861824 in words is "one billion, ninety million, eight hundred sixty-one thousand, eight hundred twenty-four".