40049636 has 12 divisors (see below), whose sum is σ = 76458480. Its totient is φ = 18204360.

The previous prime is 40049629. The next prime is 40049657. The reversal of 40049636 is 63694004.

40049636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 455066 + ... + 455153.

It is an arithmetic number, because the mean of its divisors is an integer number (6371540).

Almost surely, 2^40049636 is an apocalyptic number.

It is an amenable number.

40049636 is a deficient number, since it is larger than the sum of its proper divisors (36408844).

40049636 is a wasteful number, since it uses less digits than its factorization.

40049636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910234 (or 910232 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 40049636 is about 6328.4781740953. The cubic root of 40049636 is about 342.1365914730.

It can be divided in two parts, 4004963 and 6, that multiplied together give a triangular number (24029778 = T₆₉₃₂).

The spelling of 40049636 in words is "forty million, forty-nine thousand, six hundred thirty-six".