405476401 has 8 divisors (see below), whose sum is σ = 468357984. Its totient is φ = 346931520.

The previous prime is 405476399. The next prime is 405476419. The reversal of 405476401 is 104674504.

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

It is a cyclic number.

It is not a de Polignac number, because 405476401 - 2¹ = 405476399 is a prime.

It is a super-2 number, since 2×405476401² = 328822223535825602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405476441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1083975 + ... + 1084348.

It is an arithmetic number, because the mean of its divisors is an integer number (58544748).

Almost surely, 2^405476401 is an apocalyptic number.

It is an amenable number.

405476401 is a deficient number, since it is larger than the sum of its proper divisors (62881583).

405476401 is a wasteful number, since it uses less digits than its factorization.

405476401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168351.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 405476401 is about 20136.4445968001. Note that the first 3 decimals coincide. The cubic root of 405476401 is about 740.1536088471.

The spelling of 405476401 in words is "four hundred five million, four hundred seventy-six thousand, four hundred one".