401321633 has 8 divisors (see below), whose sum is σ = 415735680. Its totient is φ = 386946000.

The previous prime is 401321617. The next prime is 401321639. The reversal of 401321633 is 336123104.

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 401321633 - 2⁴ = 401321617 is a prime.

It is a super-2 number, since 2×401321633² = 322118106227573378, 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 = 401321599 and 401321608.

It is not an unprimeable number, because it can be changed into a prime (401321639) 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, 12566 + ... + 30992.

It is an arithmetic number, because the mean of its divisors is an integer number (51966960).

Almost surely, 2^401321633 is an apocalyptic number.

It is an amenable number.

401321633 is a deficient number, since it is larger than the sum of its proper divisors (14414047).

401321633 is a wasteful number, since it uses less digits than its factorization.

401321633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19207.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 401321633 is about 20033.0135775924. The cubic root of 401321633 is about 737.6168972224.

Adding to 401321633 its reverse (336123104), we get a palindrome (737444737).

The spelling of 401321633 in words is "four hundred one million, three hundred twenty-one thousand, six hundred thirty-three".