401406326403 has 8 divisors (see below), whose sum is σ = 535272267600. Its totient is φ = 267572301408.

The previous prime is 401406326393. The next prime is 401406326443. The reversal of 401406326403 is 304623604104.

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

It is not a de Polignac number, because 401406326403 - 2⁶ = 401406326339 is a prime.

It is a super-2 number, since 2×401406326403² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401406326443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7949688 + ... + 8000021.

It is an arithmetic number, because the mean of its divisors is an integer number (66909033450).

Almost surely, 2^401406326403 is an apocalyptic number.

401406326403 is a deficient number, since it is larger than the sum of its proper divisors (133865941197).

401406326403 is a wasteful number, since it uses less digits than its factorization.

401406326403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15958101.

The product of its (nonzero) digits is 41472, while the sum is 33.

The spelling of 401406326403 in words is "four hundred one billion, four hundred six million, three hundred twenty-six thousand, four hundred three".