40306339 has 2 divisors, whose sum is σ = 40306340. Its totient is φ = 40306338.

The previous prime is 40306297. The next prime is 40306361. The reversal of 40306339 is 93360304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40306339 - 2¹⁹ = 39782051 is a prime.

It is equal to p_2451187 and since 40306339 and 2451187 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (40306379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20153169 + 20153170.

It is an arithmetic number, because the mean of its divisors is an integer number (20153170).

Almost surely, 2^40306339 is an apocalyptic number.

40306339 is a deficient number, since it is larger than the sum of its proper divisors (1).

40306339 is an equidigital number, since it uses as much as digits as its factorization.

40306339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 40306339 is about 6348.7273527850. The cubic root of 40306339 is about 342.8660238854.

The spelling of 40306339 in words is "forty million, three hundred six thousand, three hundred thirty-nine".