40428970 has 32 divisors (see below), whose sum is σ = 74566656. Its totient is φ = 15777600.

The previous prime is 40428967. The next prime is 40429003. The reversal of 40428970 is 7982404.

It is a happy number.

40428970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 116337 + ... + 116683.

It is an arithmetic number, because the mean of its divisors is an integer number (2330208).

Almost surely, 2^40428970 is an apocalyptic number.

40428970 is a deficient number, since it is larger than the sum of its proper divisors (34137686).

40428970 is a wasteful number, since it uses less digits than its factorization.

40428970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 40428970 is about 6358.3779378077. The cubic root of 40428970 is about 343.2133921906.

The spelling of 40428970 in words is "forty million, four hundred twenty-eight thousand, nine hundred seventy".