40920266 has 12 divisors (see below), whose sum is σ = 64166802. Its totient is φ = 19570056.

The previous prime is 40920259. The next prime is 40920283. The reversal of 40920266 is 66202904.

It can be written as a sum of positive squares in only one way, i.e., 40589641 + 330625 = 6371^2 + 575^2 .

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 5 ways as a sum of consecutive naturals, for example, 18281 + ... + 20396.

Almost surely, 2^40920266 is an apocalyptic number.

40920266 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

40920266 is a deficient number, since it is larger than the sum of its proper divisors (23246536).

40920266 is a wasteful number, since it uses less digits than its factorization.

40920266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38725 (or 38702 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 40920266 is about 6396.8950280585. The cubic root of 40920266 is about 344.5980504004.

The spelling of 40920266 in words is "forty million, nine hundred twenty thousand, two hundred sixty-six".