2042400404003 has 6 divisors (see below), whose sum is σ = 2099092308516. Its totient is φ = 1987200391752.

The previous prime is 2042400403997. The next prime is 2042400404027. The reversal of 2042400404003 is 3004040042402.

It is not a de Polignac number, because 2042400404003 - 2²² = 2042396209699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2042400404003.

It is not an unprimeable number, because it can be changed into a prime (2042400404903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 745944725 + ... + 745947462.

It is an arithmetic number, because the mean of its divisors is an integer number (349848718086).

Almost surely, 2^{2042400404003} is an apocalyptic number.

2042400404003 is a deficient number, since it is larger than the sum of its proper divisors (56691904513).

2042400404003 is an equidigital number, since it uses as much as digits as its factorization.

2042400404003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491892261 (or 1491892224 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 2042400404003 its reverse (3004040042402), we get a palindrome (5046440446405).

The spelling of 2042400404003 in words is "two trillion, forty-two billion, four hundred million, four hundred four thousand, three".