404120415 has 8 divisors (see below), whose sum is σ = 646592688. Its totient is φ = 215530880.

The previous prime is 404120411. The next prime is 404120417. The reversal of 404120415 is 514021404.

It is a happy number.

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

It is not a de Polignac number, because 404120415 - 2² = 404120411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 404120391 and 404120400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404120411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13470666 + ... + 13470695.

It is an arithmetic number, because the mean of its divisors is an integer number (80824086).

Almost surely, 2^404120415 is an apocalyptic number.

404120415 is a deficient number, since it is larger than the sum of its proper divisors (242472273).

404120415 is a wasteful number, since it uses less digits than its factorization.

404120415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26941369.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 404120415 is about 20102.7464541540. The cubic root of 404120415 is about 739.3276184860.

Adding to 404120415 its reverse (514021404), we get a palindrome (918141819).

The spelling of 404120415 in words is "four hundred four million, one hundred twenty thousand, four hundred fifteen".