40033128 has 32 divisors (see below), whose sum is σ = 100526400. Its totient is φ = 13285248.

The previous prime is 40033117. The next prime is 40033139. The reversal of 40033128 is 82133004.

It is a happy number.

40033128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40033117) and next prime (40033139).

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 7 ways as a sum of consecutive naturals, for example, 2013 + ... + 9171.

It is an arithmetic number, because the mean of its divisors is an integer number (3141450).

Almost surely, 2^40033128 is an apocalyptic number.

It is an amenable number.

40033128 is an abundant number, since it is smaller than the sum of its proper divisors (60493272).

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

40033128 is a wasteful number, since it uses less digits than its factorization.

40033128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7401 (or 7397 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 40033128 is about 6327.1737766557. The cubic root of 40033128 is about 342.0895767548.

The spelling of 40033128 in words is "forty million, thirty-three thousand, one hundred twenty-eight".