40532449 has 2 divisors, whose sum is σ = 40532450. Its totient is φ = 40532448.

The previous prime is 40532423. The next prime is 40532461. The reversal of 40532449 is 94423504.

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., 27751824 + 12780625 = 5268^2 + 3575^2 .

It is a cyclic number.

It is not a de Polignac number, because 40532449 - 2¹³ = 40524257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40532449.

It is not a weakly prime, because it can be changed into another prime (40530449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20266224 + 20266225.

It is an arithmetic number, because the mean of its divisors is an integer number (20266225).

Almost surely, 2^40532449 is an apocalyptic number.

It is an amenable number.

40532449 is a deficient number, since it is larger than the sum of its proper divisors (1).

40532449 is an equidigital number, since it uses as much as digits as its factorization.

40532449 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 40532449 is about 6366.5099544413. The cubic root of 40532449 is about 343.5059639181.

The spelling of 40532449 in words is "forty million, five hundred thirty-two thousand, four hundred forty-nine".