40323538 has 16 divisors (see below), whose sum is σ = 61180416. Its totient is φ = 19931760.

The previous prime is 40323511. The next prime is 40323553. The reversal of 40323538 is 83532304.

40323538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 107920 + ... + 108292.

It is an arithmetic number, because the mean of its divisors is an integer number (3823776).

Almost surely, 2^40323538 is an apocalyptic number.

40323538 is a deficient number, since it is larger than the sum of its proper divisors (20856878).

40323538 is a wasteful number, since it uses less digits than its factorization.

40323538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 40323538 is about 6350.0817317575. The cubic root of 40323538 is about 342.9147847365.

The spelling of 40323538 in words is "forty million, three hundred twenty-three thousand, five hundred thirty-eight".