40188048 has 40 divisors (see below), whose sum is σ = 104160000. Its totient is φ = 13352064.

The previous prime is 40188047. The next prime is 40188053. The reversal of 40188048 is 84088104.

It is not an unprimeable number, because it can be changed into a prime (40188047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15553 + ... + 17951.

It is an arithmetic number, because the mean of its divisors is an integer number (2604000).

Almost surely, 2^40188048 is an apocalyptic number.

40188048 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40188048 is an abundant number, since it is smaller than the sum of its proper divisors (63971952).

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

40188048 is a wasteful number, since it uses less digits than its factorization.

40188048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759 (or 2753 counting only the distinct ones).

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

The square root of 40188048 is about 6339.4043884264. The cubic root of 40188048 is about 342.5302809464.

The spelling of 40188048 in words is "forty million, one hundred eighty-eight thousand, forty-eight".