40081077 has 12 divisors (see below), whose sum is σ = 57986604. Its totient is φ = 26678400.

The previous prime is 40081043. The next prime is 40081081. The reversal of 40081077 is 77018004.

It can be written as a sum of positive squares in 2 ways, for example, as 27185796 + 12895281 = 5214^2 + 3591^2 .

It is not a de Polignac number, because 40081077 - 2¹⁴ = 40064693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40081077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40081037) 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, 3133 + ... + 9485.

It is an arithmetic number, because the mean of its divisors is an integer number (4832217).

Almost surely, 2^40081077 is an apocalyptic number.

It is an amenable number.

40081077 is a deficient number, since it is larger than the sum of its proper divisors (17905527).

40081077 is a wasteful number, since it uses less digits than its factorization.

40081077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7060 (or 7057 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 40081077 is about 6330.9617752755. The cubic root of 40081077 is about 342.2260995927.

The spelling of 40081077 in words is "forty million, eighty-one thousand, seventy-seven".