326401249 has 2 divisors, whose sum is σ = 326401250. Its totient is φ = 326401248.

The previous prime is 326401213. The next prime is 326401289. The reversal of 326401249 is 942104623.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239259024 + 87142225 = 15468^2 + 9335^2 .

It is a cyclic number.

It is not a de Polignac number, because 326401249 - 2¹⁵ = 326368481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 326401249.

It is not a weakly prime, because it can be changed into another prime (326401289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163200624 + 163200625.

It is an arithmetic number, because the mean of its divisors is an integer number (163200625).

Almost surely, 2^326401249 is an apocalyptic number.

It is an amenable number.

326401249 is a deficient number, since it is larger than the sum of its proper divisors (1).

326401249 is an equidigital number, since it uses as much as digits as its factorization.

326401249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 326401249 is about 18066.5782316409. The cubic root of 326401249 is about 688.5211265184.

The spelling of 326401249 in words is "three hundred twenty-six million, four hundred one thousand, two hundred forty-nine".