40523042 has 16 divisors (see below), whose sum is σ = 69603840. Its totient is φ = 17333088.

The previous prime is 40523027. The next prime is 40523057. The reversal of 40523042 is 24032504.

It is an interprime number because it is at equal distance from previous prime (40523027) and next prime (40523057).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5423 + ... + 10509.

It is an arithmetic number, because the mean of its divisors is an integer number (4350240).

Almost surely, 2^40523042 is an apocalyptic number.

40523042 is a deficient number, since it is larger than the sum of its proper divisors (29080798).

40523042 is a wasteful number, since it uses less digits than its factorization.

40523042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5665.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 40523042 is about 6365.7711237524. The cubic root of 40523042 is about 343.4793875931.

Adding to 40523042 its reverse (24032504), we get a palindrome (64555546).

The spelling of 40523042 in words is "forty million, five hundred twenty-three thousand, forty-two".