1140400211 has 4 divisors (see below), whose sum is σ = 1145172000. Its totient is φ = 1135628424.

The previous prime is 1140400207. The next prime is 1140400223. The reversal of 1140400211 is 1120040411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1140400211 - 2² = 1140400207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140400201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2385536 + ... + 2386013.

It is an arithmetic number, because the mean of its divisors is an integer number (286293000).

Almost surely, 2^1140400211 is an apocalyptic number.

1140400211 is a deficient number, since it is larger than the sum of its proper divisors (4771789).

1140400211 is an equidigital number, since it uses as much as digits as its factorization.

1140400211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4771788.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1140400211 is about 33769.8121256249. The cubic root of 1140400211 is about 1044.7661575464.

Adding to 1140400211 its reverse (1120040411), we get a palindrome (2260440622).

The spelling of 1140400211 in words is "one billion, one hundred forty million, four hundred thousand, two hundred eleven".