40319249 has 2 divisors, whose sum is σ = 40319250. Its totient is φ = 40319248.

The previous prime is 40319239. The next prime is 40319261. The reversal of 40319249 is 94291304.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39627025 + 692224 = 6295^2 + 832^2 .

It is a cyclic number.

It is not a de Polignac number, because 40319249 - 2¹² = 40315153 is a prime.

It is not a weakly prime, because it can be changed into another prime (40319239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20159624 + 20159625.

It is an arithmetic number, because the mean of its divisors is an integer number (20159625).

Almost surely, 2^40319249 is an apocalyptic number.

It is an amenable number.

40319249 is a deficient number, since it is larger than the sum of its proper divisors (1).

40319249 is an equidigital number, since it uses as much as digits as its factorization.

40319249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 40319249 is about 6349.7440105881. The cubic root of 40319249 is about 342.9026262989.

The spelling of 40319249 in words is "forty million, three hundred nineteen thousand, two hundred forty-nine".