40352449 has 2 divisors, whose sum is σ = 40352450. Its totient is φ = 40352448.

The previous prime is 40352393. The next prime is 40352453. The reversal of 40352449 is 94425304.

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., 20638849 + 19713600 = 4543^2 + 4440^2 .

It is a cyclic number.

It is not a de Polignac number, because 40352449 - 2⁹ = 40351937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40352449.

It is not a weakly prime, because it can be changed into another prime (40352479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20176224 + 20176225.

It is an arithmetic number, because the mean of its divisors is an integer number (20176225).

Almost surely, 2^40352449 is an apocalyptic number.

It is an amenable number.

40352449 is a deficient number, since it is larger than the sum of its proper divisors (1).

40352449 is an equidigital number, since it uses as much as digits as its factorization.

40352449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 40352449 is about 6352.3577512606. The cubic root of 40352449 is about 342.9967190228.

The spelling of 40352449 in words is "forty million, three hundred fifty-two thousand, four hundred forty-nine".