40335523 has 2 divisors, whose sum is σ = 40335524. Its totient is φ = 40335522.

The previous prime is 40335517. The next prime is 40335539. The reversal of 40335523 is 32553304.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40335523 - 2²⁵ = 6781091 is a prime.

It is not a weakly prime, because it can be changed into another prime (40335023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20167761 + 20167762.

It is an arithmetic number, because the mean of its divisors is an integer number (20167762).

Almost surely, 2^40335523 is an apocalyptic number.

40335523 is a deficient number, since it is larger than the sum of its proper divisors (1).

40335523 is an equidigital number, since it uses as much as digits as its factorization.

40335523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 40335523 is about 6351.0253502879. The cubic root of 40335523 is about 342.9487551897.

Adding to 40335523 its reverse (32553304), we get a palindrome (72888827).

The spelling of 40335523 in words is "forty million, three hundred thirty-five thousand, five hundred twenty-three".