40566938 has 8 divisors (see below), whose sum is σ = 64053120. Its totient is φ = 19215900.

The previous prime is 40566937. The next prime is 40566971. The reversal of 40566938 is 83966504.

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

It is a junction number, because it is equal to n+sod(n) for n = 40566895 and 40566904.

It is not an unprimeable number, because it can be changed into a prime (40566937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533738 + ... + 533813.

It is an arithmetic number, because the mean of its divisors is an integer number (8006640).

Almost surely, 2^40566938 is an apocalyptic number.

40566938 is a deficient number, since it is larger than the sum of its proper divisors (23486182).

40566938 is a wasteful number, since it uses less digits than its factorization.

40566938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067572.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 40566938 is about 6369.2180053755. The cubic root of 40566938 is about 343.6033658666.

The spelling of 40566938 in words is "forty million, five hundred sixty-six thousand, nine hundred thirty-eight".