1040403345344 has 56 divisors (see below), whose sum is σ = 2253967275648. Its totient is φ = 472547255040.

The previous prime is 1040403345329. The next prime is 1040403345433. The reversal of 1040403345344 is 4435433040401.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350219 + ... + 1484405.

Almost surely, 2^{1040403345344} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1040403345344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1126983637824).

1040403345344 is an abundant number, since it is smaller than the sum of its proper divisors (1213563930304).

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

1040403345344 is a wasteful number, since it uses less digits than its factorization.

1040403345344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135513 (or 1135503 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 1040403345344 its reverse (4435433040401), we get a palindrome (5475836385745).

The spelling of 1040403345344 in words is "one trillion, forty billion, four hundred three million, three hundred forty-five thousand, three hundred forty-four".