1140113408 has 60 divisors (see below), whose sum is σ = 2606156112. Its totient is φ = 488570880.

The previous prime is 1140113393. The next prime is 1140113419. The reversal of 1140113408 is 8043110411.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109718 + ... + 119658.

Almost surely, 2^1140113408 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 1140113408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1303078056).

1140113408 is an abundant number, since it is smaller than the sum of its proper divisors (1466042704).

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

1140113408 is an frugal number, since it uses more digits than its factorization.

1140113408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9976 (or 9950 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 1140113408 is about 33765.5654180409. The cubic root of 1140113408 is about 1044.6785663107.

Adding to 1140113408 its reverse (8043110411), we get a palindrome (9183223819).

The spelling of 1140113408 in words is "one billion, one hundred forty million, one hundred thirteen thousand, four hundred eight".