40079329 has 2 divisors, whose sum is σ = 40079330. Its totient is φ = 40079328.

The previous prime is 40079327. The next prime is 40079339. The reversal of 40079329 is 92397004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40030929 + 48400 = 6327^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 40079329 - 2¹ = 40079327 is a prime.

It is a super-2 number, since 2×40079329² = 3212705226180482, which contains 22 as substring.

Together with 40079327, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 40079294 and 40079303.

It is not a weakly prime, because it can be changed into another prime (40079321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20039664 + 20039665.

It is an arithmetic number, because the mean of its divisors is an integer number (20039665).

Almost surely, 2^40079329 is an apocalyptic number.

It is an amenable number.

40079329 is a deficient number, since it is larger than the sum of its proper divisors (1).

40079329 is an equidigital number, since it uses as much as digits as its factorization.

40079329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 40079329 is about 6330.8237220760. The cubic root of 40079329 is about 342.2211245108.

The spelling of 40079329 in words is "forty million, seventy-nine thousand, three hundred twenty-nine".