40905063 has 12 divisors (see below), whose sum is σ = 61654320. Its totient is φ = 26084256.

The previous prime is 40905061. The next prime is 40905071. The reversal of 40905063 is 36050904.

It is a happy number.

It is not a de Polignac number, because 40905063 - 2¹ = 40905061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40905061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98598 + ... + 99011.

It is an arithmetic number, because the mean of its divisors is an integer number (5137860).

Almost surely, 2^40905063 is an apocalyptic number.

40905063 is a deficient number, since it is larger than the sum of its proper divisors (20749257).

40905063 is a wasteful number, since it uses less digits than its factorization.

40905063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197638 (or 197635 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 40905063 is about 6395.7066067793. The cubic root of 40905063 is about 344.5553692418. Note that the first 3 decimals are identical.

Adding to 40905063 its reverse (36050904), we get a palindrome (76955967).

The spelling of 40905063 in words is "forty million, nine hundred five thousand, sixty-three".