40523938 has 16 divisors (see below), whose sum is σ = 74813760. Its totient is φ = 16031376.

The previous prime is 40523929. The next prime is 40523939. The reversal of 40523938 is 83932504.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40523939) by changing a digit.

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, 111148 + ... + 111511.

It is an arithmetic number, because the mean of its divisors is an integer number (4675860).

Almost surely, 2^40523938 is an apocalyptic number.

40523938 is a deficient number, since it is larger than the sum of its proper divisors (34289822).

40523938 is a wasteful number, since it uses less digits than its factorization.

40523938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222681.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 40523938 is about 6365.8414997548. The cubic root of 40523938 is about 343.4819191179.

The spelling of 40523938 in words is "forty million, five hundred twenty-three thousand, nine hundred thirty-eight".