40428774 has 32 divisors (see below), whose sum is σ = 92743680. Its totient is φ = 13041000.

The previous prime is 40428769. The next prime is 40428793. The reversal of 40428774 is 47782404.

40428774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 10402 + ... + 13749.

It is an arithmetic number, because the mean of its divisors is an integer number (2898240).

Almost surely, 2^40428774 is an apocalyptic number.

40428774 is an abundant number, since it is smaller than the sum of its proper divisors (52314906).

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

40428774 is a wasteful number, since it uses less digits than its factorization.

40428774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24193 (or 24187 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 40428774 is about 6358.3625250531. The cubic root of 40428774 is about 343.2128375559.

The spelling of 40428774 in words is "forty million, four hundred twenty-eight thousand, seven hundred seventy-four".