40377877 has 2 divisors, whose sum is σ = 40377878. Its totient is φ = 40377876.

The previous prime is 40377859. The next prime is 40377901. The reversal of 40377877 is 77877304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38825361 + 1552516 = 6231^2 + 1246^2 .

It is a cyclic number.

It is not a de Polignac number, because 40377877 - 2⁷ = 40377749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40377847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20188938 + 20188939.

It is an arithmetic number, because the mean of its divisors is an integer number (20188939).

Almost surely, 2^40377877 is an apocalyptic number.

It is an amenable number.

40377877 is a deficient number, since it is larger than the sum of its proper divisors (1).

40377877 is an equidigital number, since it uses as much as digits as its factorization.

40377877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 230496, while the sum is 43.

The square root of 40377877 is about 6354.3588976387. The cubic root of 40377877 is about 343.0687500844.

The spelling of 40377877 in words is "forty million, three hundred seventy-seven thousand, eight hundred seventy-seven".