1140422240 has 24 divisors (see below), whose sum is σ = 2694247920. Its totient is φ = 456168832.

The previous prime is 1140422219. The next prime is 1140422243. The reversal of 1140422240 is 422240411.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140422243) 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, 3563660 + ... + 3563979.

It is an arithmetic number, because the mean of its divisors is an integer number (112260330).

Almost surely, 2^1140422240 is an apocalyptic number.

1140422240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1140422240 is an abundant number, since it is smaller than the sum of its proper divisors (1553825680).

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

1140422240 is an equidigital number, since it uses as much as digits as its factorization.

1140422240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7127654 (or 7127646 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1140422240 is about 33770.1382881385. The cubic root of 1140422240 is about 1044.7728847185.

Adding to 1140422240 its reverse (422240411), we get a palindrome (1562662651).

The spelling of 1140422240 in words is "one billion, one hundred forty million, four hundred twenty-two thousand, two hundred forty".