40927257 has 12 divisors (see below), whose sum is σ = 67562560. Its totient is φ = 23386968.

The previous prime is 40927241. The next prime is 40927261. The reversal of 40927257 is 75272904.

It is not a de Polignac number, because 40927257 - 2⁴ = 40927241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40927267) 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, 324757 + ... + 324882.

Almost surely, 2^40927257 is an apocalyptic number.

It is an amenable number.

40927257 is a deficient number, since it is larger than the sum of its proper divisors (26635303).

40927257 is a wasteful number, since it uses less digits than its factorization.

40927257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649652 (or 649649 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 40927257 is about 6397.4414417015. The cubic root of 40927257 is about 344.6176735035.

The spelling of 40927257 in words is "forty million, nine hundred twenty-seven thousand, two hundred fifty-seven".