1302040222440 has 256 divisors, whose sum is σ = 4355356262400. Its totient is φ = 309460340736.

The previous prime is 1302040222403. The next prime is 1302040222447. The reversal of 1302040222440 is 442220402031.

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 1302040222440.

It is not an unprimeable number, because it can be changed into a prime (1302040222447) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 122747617 + ... + 122758223.

It is an arithmetic number, because the mean of its divisors is an integer number (17013110400).

Almost surely, 2^{1302040222440} is an apocalyptic number.

1302040222440 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 1302040222440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2177678131200).

1302040222440 is an abundant number, since it is smaller than the sum of its proper divisors (3053316039960).

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

1302040222440 is a wasteful number, since it uses less digits than its factorization.

1302040222440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13824 (or 13820 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 1302040222440 its reverse (442220402031), we get a palindrome (1744260624471).

The spelling of 1302040222440 in words is "one trillion, three hundred two billion, forty million, two hundred twenty-two thousand, four hundred forty".