40522399 has 2 divisors, whose sum is σ = 40522400. Its totient is φ = 40522398.

The previous prime is 40522397. The next prime is 40522403. The reversal of 40522399 is 99322504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40522399 - 2¹ = 40522397 is a prime.

Together with 40522397, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40522393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20261199 + 20261200.

It is an arithmetic number, because the mean of its divisors is an integer number (20261200).

Almost surely, 2^40522399 is an apocalyptic number.

40522399 is a deficient number, since it is larger than the sum of its proper divisors (1).

40522399 is an equidigital number, since it uses as much as digits as its factorization.

40522399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 40522399 is about 6365.7206190658. The cubic root of 40522399 is about 343.4775708619.

The spelling of 40522399 in words is "forty million, five hundred twenty-two thousand, three hundred ninety-nine".