1140312220440 has 128 divisors (see below), whose sum is σ = 3432285964800. Its totient is φ = 303075353600.

The previous prime is 1140312220427. The next prime is 1140312220501. The reversal of 1140312220440 is 440222130411.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1140312220440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96622540 + ... + 96634340.

It is an arithmetic number, because the mean of its divisors is an integer number (26814734100).

Almost surely, 2^{1140312220440} is an apocalyptic number.

1140312220440 is a gapful number since it is divisible by the number (10) 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 1140312220440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1716142982400).

1140312220440 is an abundant number, since it is smaller than the sum of its proper divisors (2291973744360).

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

1140312220440 is a wasteful number, since it uses less digits than its factorization.

1140312220440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14417 (or 14413 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1140312220440 its reverse (440222130411), we get a palindrome (1580534350851).

The spelling of 1140312220440 in words is "one trillion, one hundred forty billion, three hundred twelve million, two hundred twenty thousand, four hundred forty".