1133440040 has 32 divisors (see below), whose sum is σ = 2552964480. Its totient is φ = 452891712.

The previous prime is 1133440037. The next prime is 1133440043. The reversal of 1133440040 is 400443311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1133440037) and next prime (1133440043).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1133439994 and 1133440021.

It is not an unprimeable number, because it can be changed into a prime (1133440043) 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, 24029 + ... + 53331.

It is an arithmetic number, because the mean of its divisors is an integer number (79780140).

Almost surely, 2^1133440040 is an apocalyptic number.

1133440040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1133440040 is an abundant number, since it is smaller than the sum of its proper divisors (1419524440).

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

1133440040 is a wasteful number, since it uses less digits than its factorization.

1133440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30281 (or 30277 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1133440040 is about 33666.6012540619. The cubic root of 1133440040 is about 1042.6363218305.

Adding to 1133440040 its reverse (400443311), we get a palindrome (1533883351).

The spelling of 1133440040 in words is "one billion, one hundred thirty-three million, four hundred forty thousand, forty".