1140020224 has 88 divisors (see below), whose sum is σ = 2635225920. Its totient is φ = 482820096.

The previous prime is 1140020183. The next prime is 1140020227. The reversal of 1140020224 is 4220200411.

It is a super-2 number, since 2×1140020224² = 2599292222258020352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1140020198 and 1140020207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140020227) 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, 637059 + ... + 638845.

Almost surely, 2^1140020224 is an apocalyptic number.

1140020224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1140020224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1317612960).

1140020224 is an abundant number, since it is smaller than the sum of its proper divisors (1495205696).

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

1140020224 is an equidigital number, since it uses as much as digits as its factorization.

1140020224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903 (or 1885 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1140020224 is about 33764.1855225326. The cubic root of 1140020224 is about 1044.6501042357.

Adding to 1140020224 its reverse (4220200411), we get a palindrome (5360220635).

The spelling of 1140020224 in words is "one billion, one hundred forty million, twenty thousand, two hundred twenty-four".