40234969 has 2 divisors, whose sum is σ = 40234970. Its totient is φ = 40234968.

The previous prime is 40234967. The next prime is 40234973. The reversal of 40234969 is 96943204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33500944 + 6734025 = 5788^2 + 2595^2 .

It is a cyclic number.

It is not a de Polignac number, because 40234969 - 2¹ = 40234967 is a prime.

It is a super-2 number, since 2×40234969² = 3237705460861922, which contains 22 as substring.

Together with 40234967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40234963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20117484 + 20117485.

It is an arithmetic number, because the mean of its divisors is an integer number (20117485).

Almost surely, 2^40234969 is an apocalyptic number.

It is an amenable number.

40234969 is a deficient number, since it is larger than the sum of its proper divisors (1).

40234969 is an equidigital number, since it uses as much as digits as its factorization.

40234969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 40234969 is about 6343.1040508571. The cubic root of 40234969 is about 342.6635345989.

The spelling of 40234969 in words is "forty million, two hundred thirty-four thousand, nine hundred sixty-nine".