401545423 has 16 divisors (see below), whose sum is σ = 439193664. Its totient is φ = 365575680.

The previous prime is 401545421. The next prime is 401545429. The reversal of 401545423 is 324545104.

It is a cyclic number.

It is not a de Polignac number, because 401545423 - 2¹ = 401545421 is a prime.

It is a super-2 number, since 2×401545423² = 322477453464497858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401545391 and 401545400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401545421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112086 + ... + 115612.

It is an arithmetic number, because the mean of its divisors is an integer number (27449604).

Almost surely, 2^401545423 is an apocalyptic number.

401545423 is a deficient number, since it is larger than the sum of its proper divisors (37648241).

401545423 is a wasteful number, since it uses less digits than its factorization.

401545423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3762.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 401545423 is about 20038.5983292245. The cubic root of 401545423 is about 737.7539781390.

The spelling of 401545423 in words is "four hundred one million, five hundred forty-five thousand, four hundred twenty-three".