1090430208 has 288 divisors, whose sum is σ = 3809361920. Its totient is φ = 301086720.

The previous prime is 1090430147. The next prime is 1090430213. The reversal of 1090430208 is 8020340901.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1499541 + ... + 1500267.

Almost surely, 2^1090430208 is an apocalyptic number.

1090430208 is a gapful number since it is divisible by the number (18) 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 1090430208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1904680960).

1090430208 is an abundant number, since it is smaller than the sum of its proper divisors (2718931712).

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

1090430208 is an equidigital number, since it uses as much as digits as its factorization.

1090430208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1090430208 is about 33021.6627079861. The cubic root of 1090430208 is about 1029.2778448854.

The spelling of 1090430208 in words is "one billion, ninety million, four hundred thirty thousand, two hundred eight".