1042320541440 has 72 divisors (see below), whose sum is σ = 3328911241488. Its totient is φ = 277952143360.

The previous prime is 1042320541393. The next prime is 1042320541441. The reversal of 1042320541440 is 441450232401.

It is a super-2 number, since 2×1042320541440² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1042320541398 and 1042320541407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042320541441) 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, 135714981 + ... + 135722660.

It is an arithmetic number, because the mean of its divisors is an integer number (46234878354).

Almost surely, 2^{1042320541440} is an apocalyptic number.

1042320541440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042320541440 is an abundant number, since it is smaller than the sum of its proper divisors (2286590700048).

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

1042320541440 is an equidigital number, since it uses as much as digits as its factorization.

1042320541440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271437665 (or 271437651 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 1042320541440 its reverse (441450232401), we get a palindrome (1483770773841).

The spelling of 1042320541440 in words is "one trillion, forty-two billion, three hundred twenty million, five hundred forty-one thousand, four hundred forty".