40682321 has 2 divisors, whose sum is σ = 40682322. Its totient is φ = 40682320.

The previous prime is 40682293. The next prime is 40682339. The reversal of 40682321 is 12328604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39753025 + 929296 = 6305^2 + 964^2 .

It is a cyclic number.

It is not a de Polignac number, because 40682321 - 2²² = 36488017 is a prime.

It is not a weakly prime, because it can be changed into another prime (40682371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20341160 + 20341161.

It is an arithmetic number, because the mean of its divisors is an integer number (20341161).

Almost surely, 2^40682321 is an apocalyptic number.

It is an amenable number.

40682321 is a deficient number, since it is larger than the sum of its proper divisors (1).

40682321 is an equidigital number, since it uses as much as digits as its factorization.

40682321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 40682321 is about 6378.2694361402. The cubic root of 40682321 is about 343.9288234974.

The spelling of 40682321 in words is "forty million, six hundred eighty-two thousand, three hundred twenty-one".