40754857 has 18 divisors (see below), whose sum is σ = 48531966. Its totient is φ = 34182720.

The previous prime is 40754851. The next prime is 40754911. The reversal of 40754857 is 75845704.

It can be written as a sum of positive squares in 3 ways, for example, as 609961 + 40144896 = 781^2 + 6336^2 .

It is a de Polignac number, because none of the positive numbers 2^k-40754857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40754851) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19453 + ... + 21445.

Almost surely, 2^40754857 is an apocalyptic number.

It is an amenable number.

40754857 is a deficient number, since it is larger than the sum of its proper divisors (7777109).

40754857 is a wasteful number, since it uses less digits than its factorization.

40754857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041 (or 2017 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 40754857 is about 6383.9530856672. The cubic root of 40754857 is about 344.1331088671.

The spelling of 40754857 in words is "forty million, seven hundred fifty-four thousand, eight hundred fifty-seven".