1090140012 has 48 divisors (see below), whose sum is σ = 3043699680. Its totient is φ = 335427264.

The previous prime is 1090139989. The next prime is 1090140059. The reversal of 1090140012 is 2100410901.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386823 + ... + 389630.

It is an arithmetic number, because the mean of its divisors is an integer number (63410410).

Almost surely, 2^1090140012 is an apocalyptic number.

1090140012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1090140012 is an abundant number, since it is smaller than the sum of its proper divisors (1953559668).

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

1090140012 is a wasteful number, since it uses less digits than its factorization.

1090140012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776479 (or 776471 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 1090140012 is about 33017.2683909496. The cubic root of 1090140012 is about 1029.1865296069.

Adding to 1090140012 its reverse (2100410901), we get a palindrome (3190550913).

The spelling of 1090140012 in words is "one billion, ninety million, one hundred forty thousand, twelve".