326400061 has 8 divisors (see below), whose sum is σ = 366791040. Its totient is φ = 288192432.

The previous prime is 326400059. The next prime is 326400071. The reversal of 326400061 is 160004623.

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 326400061 - 2¹ = 326400059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326400071) 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, 545521 + ... + 546118.

It is an arithmetic number, because the mean of its divisors is an integer number (45848880).

Almost surely, 2^326400061 is an apocalyptic number.

It is an amenable number.

326400061 is a deficient number, since it is larger than the sum of its proper divisors (40390979).

326400061 is a wasteful number, since it uses less digits than its factorization.

326400061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091675.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 326400061 is about 18066.5453532212. The cubic root of 326400061 is about 688.5202911824.

Adding to 326400061 its reverse (160004623), we get a palindrome (486404684).

The spelling of 326400061 in words is "three hundred twenty-six million, four hundred thousand, sixty-one".