40768057 has 16 divisors (see below), whose sum is σ = 47309184. Its totient is φ = 34720000.

The previous prime is 40768051. The next prime is 40768061. The reversal of 40768057 is 75086704.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40768057 - 2¹⁹ = 40243769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40768051) 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, 57807 + ... + 58507.

It is an arithmetic number, because the mean of its divisors is an integer number (2956824).

Almost surely, 2^40768057 is an apocalyptic number.

It is an amenable number.

40768057 is a deficient number, since it is larger than the sum of its proper divisors (6541127).

40768057 is a wasteful number, since it uses less digits than its factorization.

40768057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 40768057 is about 6384.9868441525. The cubic root of 40768057 is about 344.1702583591.

The spelling of 40768057 in words is "forty million, seven hundred sixty-eight thousand, fifty-seven".