401646223 has 8 divisors (see below), whose sum is σ = 438322896. Its totient is φ = 364996800.

The previous prime is 401646169. The next prime is 401646229. The reversal of 401646223 is 322646104.

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-401646223 is a prime.

It is a super-2 number, since 2×401646223² = 322639376900331458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401646191 and 401646200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401646229) 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, 35433 + ... + 45373.

It is an arithmetic number, because the mean of its divisors is an integer number (54790362).

Almost surely, 2^401646223 is an apocalyptic number.

401646223 is a deficient number, since it is larger than the sum of its proper divisors (36676673).

401646223 is a wasteful number, since it uses less digits than its factorization.

401646223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13625.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 401646223 is about 20041.1133173784. The cubic root of 401646223 is about 737.8157058000.

The spelling of 401646223 in words is "four hundred one million, six hundred forty-six thousand, two hundred twenty-three".