40427757 has 12 divisors (see below), whose sum is σ = 58998940. Its totient is φ = 26673408.

The previous prime is 40427753. The next prime is 40427759. The reversal of 40427757 is 75772404.

It is a happy number.

40427757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 26071236 + 14356521 = 5106^2 + 3789^2 .

It is not a de Polignac number, because 40427757 - 2² = 40427753 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40427753) 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 11 ways as a sum of consecutive naturals, for example, 22282 + ... + 24027.

Almost surely, 2^40427757 is an apocalyptic number.

It is an amenable number.

40427757 is a deficient number, since it is larger than the sum of its proper divisors (18571183).

40427757 is a wasteful number, since it uses less digits than its factorization.

40427757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46412 (or 46409 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 40427757 is about 6358.2825511297. The cubic root of 40427757 is about 343.2099596520.

The spelling of 40427757 in words is "forty million, four hundred twenty-seven thousand, seven hundred fifty-seven".