40449008 has 20 divisors (see below), whose sum is σ = 79445808. Its totient is φ = 19946880.

The previous prime is 40449007. The next prime is 40449011. The reversal of 40449008 is 80094404.

It is a happy number.

40449008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40449008² = 3272244496368128, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40449007) 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 3 ways as a sum of consecutive naturals, for example, 16148 + ... + 18483.

Almost surely, 2^40449008 is an apocalyptic number.

It is an amenable number.

40449008 is a deficient number, since it is larger than the sum of its proper divisors (38996800).

40449008 is a wasteful number, since it uses less digits than its factorization.

40449008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34712 (or 34706 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 40449008 is about 6359.9534589492. The cubic root of 40449008 is about 343.2700856463.

The spelling of 40449008 in words is "forty million, four hundred forty-nine thousand, eight".