40756977 has 12 divisors (see below), whose sum is σ = 60901620. Its totient is φ = 26234208.

The previous prime is 40756931. The next prime is 40756979. The reversal of 40756977 is 77965704.

It can be written as a sum of positive squares in 2 ways, for example, as 21123216 + 19633761 = 4596^2 + 4431^2 .

It is not a de Polignac number, because 40756977 - 2⁶ = 40756913 is a prime.

It is a super-2 number, since 2×40756977² = 3322262348357058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40756979) 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, 77818 + ... + 78339.

It is an arithmetic number, because the mean of its divisors is an integer number (5075135).

Almost surely, 2^40756977 is an apocalyptic number.

It is an amenable number.

40756977 is a deficient number, since it is larger than the sum of its proper divisors (20144643).

40756977 is a wasteful number, since it uses less digits than its factorization.

40756977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156192 (or 156189 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 40756977 is about 6384.1191248284. The cubic root of 40756977 is about 344.1390758413.

It can be divided in two parts, 4075697 and 7, that added together give a palindrome (4075704).

The spelling of 40756977 in words is "forty million, seven hundred fifty-six thousand, nine hundred seventy-seven".