40164799 has 2 divisors, whose sum is σ = 40164800. Its totient is φ = 40164798.

The previous prime is 40164793. The next prime is 40164821. The reversal of 40164799 is 99746104.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40164799 - 2¹³ = 40156607 is a prime.

It is a super-2 number, since 2×40164799² = 3226422157420802, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40164793) 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, 20082399 + 20082400.

It is an arithmetic number, because the mean of its divisors is an integer number (20082400).

Almost surely, 2^40164799 is an apocalyptic number.

40164799 is a deficient number, since it is larger than the sum of its proper divisors (1).

40164799 is an equidigital number, since it uses as much as digits as its factorization.

40164799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 40164799 is about 6337.5704335337. The cubic root of 40164799 is about 342.4642163407.

The spelling of 40164799 in words is "forty million, one hundred sixty-four thousand, seven hundred ninety-nine".