404343121 has 8 divisors (see below), whose sum is σ = 497653184. Its totient is φ = 319919760.

The previous prime is 404343101. The next prime is 404343127. The reversal of 404343121 is 121343404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404343121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 404343092 and 404343101.

It is not an unprimeable number, because it can be changed into a prime (404343127) 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, 2221575 + ... + 2221756.

It is an arithmetic number, because the mean of its divisors is an integer number (62206648).

Almost surely, 2^404343121 is an apocalyptic number.

It is an amenable number.

404343121 is a deficient number, since it is larger than the sum of its proper divisors (93310063).

404343121 is a wasteful number, since it uses less digits than its factorization.

404343121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4443351.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 404343121 is about 20108.2848845942. The cubic root of 404343121 is about 739.4634051259.

Adding to 404343121 its reverse (121343404), we get a palindrome (525686525).

The spelling of 404343121 in words is "four hundred four million, three hundred forty-three thousand, one hundred twenty-one".