326630401 has 24 divisors (see below), whose sum is σ = 358968960. Its totient is φ = 296984832.

The previous prime is 326630399. The next prime is 326630419. The reversal of 326630401 is 104036623.

It is not a de Polignac number, because 326630401 - 2¹ = 326630399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326630461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1887951 + ... + 1888123.

It is an arithmetic number, because the mean of its divisors is an integer number (14957040).

Almost surely, 2^326630401 is an apocalyptic number.

It is an amenable number.

326630401 is a deficient number, since it is larger than the sum of its proper divisors (32338559).

326630401 is a wasteful number, since it uses less digits than its factorization.

326630401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 326630401 is about 18072.9189950047. The cubic root of 326630401 is about 688.6822156538.

The spelling of 326630401 in words is "three hundred twenty-six million, six hundred thirty thousand, four hundred one".