2400404424406 has 8 divisors (see below), whose sum is σ = 3604330121040. Its totient is φ = 1198961050728.

The previous prime is 2400404424391. The next prime is 2400404424419. The reversal of 2400404424406 is 6044244040042.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 620578321 + ... + 620582188.

It is an arithmetic number, because the mean of its divisors is an integer number (450541265130).

Almost surely, 2^{2400404424406} is an apocalyptic number.

2400404424406 is a deficient number, since it is larger than the sum of its proper divisors (1203925696634).

2400404424406 is a wasteful number, since it uses less digits than its factorization.

2400404424406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241161478.

The product of its (nonzero) digits is 98304, while the sum is 34.

Adding to 2400404424406 its reverse (6044244040042), we get a palindrome (8444648464448).

The spelling of 2400404424406 in words is "two trillion, four hundred billion, four hundred four million, four hundred twenty-four thousand, four hundred six".