40850257 has 16 divisors (see below), whose sum is σ = 48421120. Its totient is φ = 33732288.

The previous prime is 40850221. The next prime is 40850261. The reversal of 40850257 is 75205804.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40850257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40850657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27508 + ... + 28954.

It is an arithmetic number, because the mean of its divisors is an integer number (3026320).

Almost surely, 2^40850257 is an apocalyptic number.

It is an amenable number.

40850257 is a deficient number, since it is larger than the sum of its proper divisors (7570863).

40850257 is a wasteful number, since it uses less digits than its factorization.

40850257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 40850257 is about 6391.4205776181. The cubic root of 40850257 is about 344.4014181158.

The spelling of 40850257 in words is "forty million, eight hundred fifty thousand, two hundred fifty-seven".