40428374 has 8 divisors (see below), whose sum is σ = 69305808. Its totient is φ = 17326440.

The previous prime is 40428373. The next prime is 40428391. The reversal of 40428374 is 47382404.

40428374 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40428374.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40428373) 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, 1443857 + ... + 1443884.

It is an arithmetic number, because the mean of its divisors is an integer number (8663226).

Almost surely, 2^40428374 is an apocalyptic number.

40428374 is a deficient number, since it is larger than the sum of its proper divisors (28877434).

40428374 is a wasteful number, since it uses less digits than its factorization.

40428374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887750.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 40428374 is about 6358.3310703360. The cubic root of 40428374 is about 343.2117056427.

The spelling of 40428374 in words is "forty million, four hundred twenty-eight thousand, three hundred seventy-four".