40049888 has 24 divisors (see below), whose sum is σ = 79039800. Its totient is φ = 19976320.

The previous prime is 40049887. The next prime is 40049897. The reversal of 40049888 is 88894004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40049887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14438 + ... + 16986.

It is an arithmetic number, because the mean of its divisors is an integer number (3293325).

Almost surely, 2^40049888 is an apocalyptic number.

It is an amenable number.

40049888 is a deficient number, since it is larger than the sum of its proper divisors (38989912).

40049888 is a wasteful number, since it uses less digits than its factorization.

40049888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3050 (or 3042 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 40049888 is about 6328.4980840639. The cubic root of 40049888 is about 342.1373090678.

The spelling of 40049888 in words is "forty million, forty-nine thousand, eight hundred eighty-eight".