404240244425 has 12 divisors (see below), whose sum is σ = 501485093376. Its totient is φ = 323245621200.

The previous prime is 404240244413. The next prime is 404240244449. The reversal of 404240244425 is 524442042404.

It is a happy number.

It is not a de Polignac number, because 404240244425 - 2⁸ = 404240244169 is a prime.

It is a super-3 number, since 3×404240244425³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3608081 + ... + 3718430.

It is an arithmetic number, because the mean of its divisors is an integer number (41790424448).

Almost surely, 2^404240244425 is an apocalyptic number.

It is an amenable number.

404240244425 is a deficient number, since it is larger than the sum of its proper divisors (97244848951).

404240244425 is a wasteful number, since it uses less digits than its factorization.

404240244425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7328728 (or 7328723 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 35.

Adding to 404240244425 its reverse (524442042404), we get a palindrome (928682286829).

The spelling of 404240244425 in words is "four hundred four billion, two hundred forty million, two hundred forty-four thousand, four hundred twenty-five".