3240401321 has 8 divisors (see below), whose sum is σ = 3273429120. Its totient is φ = 3207403872.

The previous prime is 3240401309. The next prime is 3240401327. The reversal of 3240401321 is 1231040423.

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 3240401321 - 2²² = 3236207017 is a prime.

It is a super-2 number, since 2×3240401321² = 21000401442277090082, 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 = 3240401293 and 3240401302.

It is not an unprimeable number, because it can be changed into a prime (3240401327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251525 + ... + 264093.

It is an arithmetic number, because the mean of its divisors is an integer number (409178640).

Almost surely, 2^3240401321 is an apocalyptic number.

It is an amenable number.

3240401321 is a deficient number, since it is larger than the sum of its proper divisors (33027799).

3240401321 is a wasteful number, since it uses less digits than its factorization.

3240401321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15175.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3240401321 is about 56924.5230195212. The cubic root of 3240401321 is about 1479.7883373041.

Adding to 3240401321 its reverse (1231040423), we get a palindrome (4471441744).

The spelling of 3240401321 in words is "three billion, two hundred forty million, four hundred one thousand, three hundred twenty-one".