1140306216 has 128 divisors (see below), whose sum is σ = 3428352000. Its totient is φ = 309157632.

The previous prime is 1140306191. The next prime is 1140306217. The reversal of 1140306216 is 6126030411.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1140306217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 285465 + ... + 289431.

It is an arithmetic number, because the mean of its divisors is an integer number (26784000).

Almost surely, 2^1140306216 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 1140306216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1714176000).

1140306216 is an abundant number, since it is smaller than the sum of its proper divisors (2288045784).

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

1140306216 is a wasteful number, since it uses less digits than its factorization.

1140306216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071 (or 4067 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1140306216 is about 33768.4203953931. The cubic root of 1140306216 is about 1044.7374525672.

Adding to 1140306216 its reverse (6126030411), we get a palindrome (7266336627).

The spelling of 1140306216 in words is "one billion, one hundred forty million, three hundred six thousand, two hundred sixteen".