1140404213 has 8 divisors (see below), whose sum is σ = 1229530848. Its totient is φ = 1051478064.

The previous prime is 1140404171. The next prime is 1140404219. The reversal of 1140404213 is 3124040411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1140404213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140404219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38195 + ... + 61152.

It is an arithmetic number, because the mean of its divisors is an integer number (153691356).

Almost surely, 2^1140404213 is an apocalyptic number.

1140404213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1140404213 is a deficient number, since it is larger than the sum of its proper divisors (89126635).

1140404213 is an equidigital number, since it uses as much as digits as its factorization.

1140404213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100243.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1140404213 is about 33769.8713796781. The cubic root of 1140404213 is about 1044.7673796756.

Adding to 1140404213 its reverse (3124040411), we get a palindrome (4264444624).

The spelling of 1140404213 in words is "one billion, one hundred forty million, four hundred four thousand, two hundred thirteen".