40429028 has 12 divisors (see below), whose sum is σ = 70858032. Its totient is φ = 20183880.

The previous prime is 40429021. The next prime is 40429063. The reversal of 40429028 is 82092404.

40429028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40429021) by changing a digit.

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, 4550 + ... + 10077.

It is an arithmetic number, because the mean of its divisors is an integer number (5904836).

Almost surely, 2^40429028 is an apocalyptic number.

It is an amenable number.

40429028 is a deficient number, since it is larger than the sum of its proper divisors (30429004).

40429028 is a wasteful number, since it uses less digits than its factorization.

40429028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15322 (or 15320 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 40429028 is about 6358.3824987177. The cubic root of 40429028 is about 343.2135563169.

The spelling of 40429028 in words is "forty million, four hundred twenty-nine thousand, twenty-eight".