40428750 has 40 divisors (see below), whose sum is σ = 101048904. Its totient is φ = 10780000.

The previous prime is 40428721. The next prime is 40428757. The reversal of 40428750 is 5782404.

40428750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40428757) 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 19 ways as a sum of consecutive naturals, for example, 1641 + ... + 9140.

Almost surely, 2^40428750 is an apocalyptic number.

40428750 is an abundant number, since it is smaller than the sum of its proper divisors (60620154).

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

40428750 is a wasteful number, since it uses less digits than its factorization.

40428750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10806 (or 10791 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 40428750 is about 6358.3606377745. The cubic root of 40428750 is about 343.2127696413.

The spelling of 40428750 in words is "forty million, four hundred twenty-eight thousand, seven hundred fifty".