40534369 has 2 divisors, whose sum is σ = 40534370. Its totient is φ = 40534368.

The previous prime is 40534339. The next prime is 40534379. The reversal of 40534369 is 96343504.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24373969 + 16160400 = 4937^2 + 4020^2 .

It is a cyclic number.

It is not a de Polignac number, because 40534369 - 2²⁵ = 6979937 is a prime.

It is a super-2 number, since 2×40534369² = 3286070140456322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40534309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20267184 + 20267185.

It is an arithmetic number, because the mean of its divisors is an integer number (20267185).

Almost surely, 2^40534369 is an apocalyptic number.

It is an amenable number.

40534369 is a deficient number, since it is larger than the sum of its proper divisors (1).

40534369 is an equidigital number, since it uses as much as digits as its factorization.

40534369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 40534369 is about 6366.6607417075. The cubic root of 40534369 is about 343.5113877292.

The spelling of 40534369 in words is "forty million, five hundred thirty-four thousand, three hundred sixty-nine".