40937281 has 16 divisors (see below), whose sum is σ = 52421760. Its totient is φ = 31034880.

The previous prime is 40937269. The next prime is 40937297. The reversal of 40937281 is 18273904.

It is a cyclic number.

It is not a de Polignac number, because 40937281 - 2⁵ = 40937249 is a prime.

It is a super-2 number, since 2×40937281² = 3351721951345922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40937231) 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 15 ways as a sum of consecutive naturals, for example, 4336 + ... + 10033.

It is an arithmetic number, because the mean of its divisors is an integer number (3276360).

Almost surely, 2^40937281 is an apocalyptic number.

It is an amenable number.

40937281 is a deficient number, since it is larger than the sum of its proper divisors (11484479).

40937281 is a wasteful number, since it uses less digits than its factorization.

40937281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14424.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 40937281 is about 6398.2248319358. The cubic root of 40937281 is about 344.6458060638.

The spelling of 40937281 in words is "forty million, nine hundred thirty-seven thousand, two hundred eighty-one".