1090386312 has 128 divisors (see below), whose sum is σ = 2946585600. Its totient is φ = 335462400.

The previous prime is 1090386287. The next prime is 1090386373. The reversal of 1090386312 is 2136830901.

It is a super-2 number, since 2×1090386312² = 2377884618793922688, which contains 22 as substring.

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, 2092612 + ... + 2093132.

It is an arithmetic number, because the mean of its divisors is an integer number (23020200).

Almost surely, 2^1090386312 is an apocalyptic number.

1090386312 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 1090386312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1473292800).

1090386312 is an abundant number, since it is smaller than the sum of its proper divisors (1856199288).

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

1090386312 is a wasteful number, since it uses less digits than its factorization.

1090386312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 1090386312 is about 33020.9980466975. The cubic root of 1090386312 is about 1029.2640332766.

The spelling of 1090386312 in words is "one billion, ninety million, three hundred eighty-six thousand, three hundred twelve".