40048818 has 16 divisors (see below), whose sum is σ = 81411456. Its totient is φ = 13130640.

The previous prime is 40048817. The next prime is 40048847. The reversal of 40048818 is 81884004.

It is not an unprimeable number, because it can be changed into a prime (40048817) 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 7 ways as a sum of consecutive naturals, for example, 54346 + ... + 55077.

It is an arithmetic number, because the mean of its divisors is an integer number (5088216).

Almost surely, 2^40048818 is an apocalyptic number.

40048818 is an abundant number, since it is smaller than the sum of its proper divisors (41362638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40048818 is a wasteful number, since it uses less digits than its factorization.

40048818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109489.

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 40048818 is about 6328.4135452734. The cubic root of 40048818 is about 342.1342621165.

The spelling of 40048818 in words is "forty million, forty-eight thousand, eight hundred eighteen".