40839299 has 2 divisors, whose sum is σ = 40839300. Its totient is φ = 40839298.

The previous prime is 40839277. The next prime is 40839319. The reversal of 40839299 is 99293804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40839299 - 2¹⁶ = 40773763 is a prime.

It is a super-2 number, since 2×40839299² = 3335696685622802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40839209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20419649 + 20419650.

It is an arithmetic number, because the mean of its divisors is an integer number (20419650).

Almost surely, 2^40839299 is an apocalyptic number.

40839299 is a deficient number, since it is larger than the sum of its proper divisors (1).

40839299 is an equidigital number, since it uses as much as digits as its factorization.

40839299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 40839299 is about 6390.5632772080. The cubic root of 40839299 is about 344.3706203639.

The spelling of 40839299 in words is "forty million, eight hundred thirty-nine thousand, two hundred ninety-nine".