1042234403440 has 120 divisors (see below), whose sum is σ = 2620484465760. Its totient is φ = 385016873472.

The previous prime is 1042234403429. The next prime is 1042234403449. The reversal of 1042234403440 is 443044322401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042234403449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 802669 + ... + 1651891.

It is an arithmetic number, because the mean of its divisors is an integer number (21837370548).

Almost surely, 2^{1042234403440} is an apocalyptic number.

1042234403440 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 1042234403440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1310242232880).

1042234403440 is an abundant number, since it is smaller than the sum of its proper divisors (1578250062320).

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

1042234403440 is a wasteful number, since it uses less digits than its factorization.

1042234403440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849311 (or 849282 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 1042234403440 its reverse (443044322401), we get a palindrome (1485278725841).

The spelling of 1042234403440 in words is "one trillion, forty-two billion, two hundred thirty-four million, four hundred three thousand, four hundred forty".