1004023311540 has 48 divisors (see below), whose sum is σ = 2811772102272. Its totient is φ = 267691280256.

The previous prime is 1004023311521. The next prime is 1004023311547. The reversal of 1004023311540 is 451133204001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1004023311540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004023311547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1172224 + ... + 1839063.

It is an arithmetic number, because the mean of its divisors is an integer number (58578585464).

Almost surely, 2^{1004023311540} is an apocalyptic number.

1004023311540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004023311540 is an abundant number, since it is smaller than the sum of its proper divisors (1807748790732).

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

1004023311540 is a wasteful number, since it uses less digits than its factorization.

1004023311540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3016856 (or 3016854 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 1004023311540 its reverse (451133204001), we get a palindrome (1455156515541).

The spelling of 1004023311540 in words is "one trillion, four billion, twenty-three million, three hundred eleven thousand, five hundred forty".