1140442212 has 192 divisors, whose sum is σ = 3619897344. Its totient is φ = 270673920.

The previous prime is 1140442159. The next prime is 1140442223. The reversal of 1140442212 is 2122440411.

It is a super-2 number, since 2×1140442212² = 2601216877822905888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 425637 + ... + 428307.

It is an arithmetic number, because the mean of its divisors is an integer number (18853632).

Almost surely, 2^1140442212 is an apocalyptic number.

1140442212 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 1140442212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1809948672).

1140442212 is an abundant number, since it is smaller than the sum of its proper divisors (2479455132).

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

1140442212 is a wasteful number, since it uses less digits than its factorization.

1140442212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738 (or 2736 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1140442212 is about 33770.4339918811. The cubic root of 1140442212 is about 1044.7789836532.

Adding to 1140442212 its reverse (2122440411), we get a palindrome (3262882623).

The spelling of 1140442212 in words is "one billion, one hundred forty million, four hundred forty-two thousand, two hundred twelve".