40022977 has 2 divisors, whose sum is σ = 40022978. Its totient is φ = 40022976.

The previous prime is 40022959. The next prime is 40022993. The reversal of 40022977 is 77922004.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27625536 + 12397441 = 5256^2 + 3521^2 .

It is a cyclic number.

It is not a de Polignac number, because 40022977 - 2¹⁹ = 39498689 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40022377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20011488 + 20011489.

It is an arithmetic number, because the mean of its divisors is an integer number (20011489).

Almost surely, 2^40022977 is an apocalyptic number.

It is an amenable number.

40022977 is a deficient number, since it is larger than the sum of its proper divisors (1).

40022977 is an equidigital number, since it uses as much as digits as its factorization.

40022977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 40022977 is about 6326.3715508971. The cubic root of 40022977 is about 342.0606603298.

The spelling of 40022977 in words is "forty million, twenty-two thousand, nine hundred seventy-seven".