1004401101040 has 20 divisors (see below), whose sum is σ = 2335232560104. Its totient is φ = 401760440384.

The previous prime is 1004401101037. The next prime is 1004401101079. The reversal of 1004401101040 is 401011044001.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6277506802 + ... + 6277506961.

Almost surely, 2^{1004401101040} is an apocalyptic number.

1004401101040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004401101040 is an abundant number, since it is smaller than the sum of its proper divisors (1330831459064).

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

1004401101040 is a wasteful number, since it uses less digits than its factorization.

1004401101040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12555013776 (or 12555013770 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1004401101040 its reverse (401011044001), we get a palindrome (1405412145041).

The spelling of 1004401101040 in words is "one trillion, four billion, four hundred one million, one hundred one thousand, forty".