40488028 has 12 divisors (see below), whose sum is σ = 80976112. Its totient is φ = 17352000.

The previous prime is 40488017. The next prime is 40488043. The reversal of 40488028 is 82088404.

40488028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

40488028 is an admirable number.

It is a super-2 number, since 2×40488028² = 3278560822657568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40487984 and 40488002.

It is a congruent number.

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, 722973 + ... + 723028.

Almost surely, 2^40488028 is an apocalyptic number.

It is an amenable number.

40488028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40488028 is a wasteful number, since it uses less digits than its factorization.

40488028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446012 (or 1446010 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 34.

The square root of 40488028 is about 6363.0203520027. The cubic root of 40488028 is about 343.3804311129.

The spelling of 40488028 in words is "forty million, four hundred eighty-eight thousand, twenty-eight".