40745478 has 8 divisors (see below), whose sum is σ = 81490968. Its totient is φ = 13581824.

The previous prime is 40745477. The next prime is 40745527. The reversal of 40745478 is 87454704.

40745478 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.

40745478 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40745477) 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, 3395451 + ... + 3395462.

It is an arithmetic number, because the mean of its divisors is an integer number (10186371).

Almost surely, 2^40745478 is an apocalyptic number.

40745478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40745478 is a wasteful number, since it uses less digits than its factorization.

40745478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6790918.

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 40745478 is about 6383.2184671998. The cubic root of 40745478 is about 344.1067081524.

The spelling of 40745478 in words is "forty million, seven hundred forty-five thousand, four hundred seventy-eight".