1140220440 has 48 divisors (see below), whose sum is σ = 3705717600. Its totient is φ = 304058688.

The previous prime is 1140220439. The next prime is 1140220451. The reversal of 1140220440 is 440220411.

1140220440 is a `hidden beast` number, since 1 + 1 + 4 + 0 + 220 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1583280 + ... + 1583999.

It is an arithmetic number, because the mean of its divisors is an integer number (77202450).

Almost surely, 2^1140220440 is an apocalyptic number.

1140220440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1140220440 is an abundant number, since it is smaller than the sum of its proper divisors (2565497160).

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

1140220440 is a wasteful number, since it uses less digits than its factorization.

1140220440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167296 (or 3167289 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1140220440 is about 33767.1503091392. The cubic root of 1140220440 is about 1044.7112561983.

Adding to 1140220440 its reverse (440220411), we get a palindrome (1580440851).

The spelling of 1140220440 in words is "one billion, one hundred forty million, two hundred twenty thousand, four hundred forty".