40977239 has 4 divisors (see below), whose sum is σ = 40990656. Its totient is φ = 40963824.

The previous prime is 40977229. The next prime is 40977247. The reversal of 40977239 is 93277904.

40977239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40977239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40977196 and 40977205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40977229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347 + ... + 9059.

It is an arithmetic number, because the mean of its divisors is an integer number (10247664).

Almost surely, 2^40977239 is an apocalyptic number.

40977239 is a deficient number, since it is larger than the sum of its proper divisors (13417).

40977239 is an equidigital number, since it uses as much as digits as its factorization.

40977239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13416.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 40977239 is about 6401.3466551969. The cubic root of 40977239 is about 344.7579033874.

The spelling of 40977239 in words is "forty million, nine hundred seventy-seven thousand, two hundred thirty-nine".