2400042020422 has 4 divisors (see below), whose sum is σ = 3600063030636. Its totient is φ = 1200021010210.

The previous prime is 2400042020359. The next prime is 2400042020437. The reversal of 2400042020422 is 2240202400042.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2400042020393 and 2400042020402.

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 as a sum of consecutive naturals, namely, 600010505104 + ... + 600010505107.

It is an arithmetic number, because the mean of its divisors is an integer number (900015757659).

Almost surely, 2^{2400042020422} is an apocalyptic number.

2400042020422 is a deficient number, since it is larger than the sum of its proper divisors (1200021010214).

2400042020422 is a wasteful number, since it uses less digits than its factorization.

2400042020422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200021010213.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 2400042020422 its reverse (2240202400042), we get a palindrome (4640244420464).

The spelling of 2400042020422 in words is "two trillion, four hundred billion, forty-two million, twenty thousand, four hundred twenty-two".