40229649 has 16 divisors (see below), whose sum is σ = 59761600. Its totient is φ = 26746848.

The previous prime is 40229647. The next prime is 40229659. The reversal of 40229649 is 94692204.

40229649 is a `hidden beast` number, since 4 + 0 + 2 + 2 + 9 + 649 = 666.

40229649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40229649 - 2¹ = 40229647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40229647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9222 + ... + 12864.

It is an arithmetic number, because the mean of its divisors is an integer number (3735100).

Almost surely, 2^40229649 is an apocalyptic number.

It is an amenable number.

40229649 is a deficient number, since it is larger than the sum of its proper divisors (19531951).

40229649 is a wasteful number, since it uses less digits than its factorization.

40229649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4061 (or 4055 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 40229649 is about 6342.6846839489. The cubic root of 40229649 is about 342.6484312331.

The spelling of 40229649 in words is "forty million, two hundred twenty-nine thousand, six hundred forty-nine".