40606257 has 8 divisors (see below), whose sum is σ = 54353376. Its totient is φ = 26964992.

The previous prime is 40606229. The next prime is 40606273. The reversal of 40606257 is 75260604.

40606257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 40606257 - 2¹² = 40602161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40606207) by changing a digit.

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, 25563 + ... + 27104.

It is an arithmetic number, because the mean of its divisors is an integer number (6794172).

Almost surely, 2^40606257 is an apocalyptic number.

It is an amenable number.

40606257 is a deficient number, since it is larger than the sum of its proper divisors (13747119).

40606257 is a wasteful number, since it uses less digits than its factorization.

40606257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52927.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 40606257 is about 6372.3039004743. The cubic root of 40606257 is about 343.7143411165.

The spelling of 40606257 in words is "forty million, six hundred six thousand, two hundred fifty-seven".