40712641 has 4 divisors (see below), whose sum is σ = 42025984. Its totient is φ = 39399300.

The previous prime is 40712621. The next prime is 40712647. The reversal of 40712641 is 14621704.

40712641 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 Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40712641 - 2⁷ = 40712513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40712647) 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, 656625 + ... + 656686.

It is an arithmetic number, because the mean of its divisors is an integer number (10506496).

Almost surely, 2^40712641 is an apocalyptic number.

It is an amenable number.

40712641 is a deficient number, since it is larger than the sum of its proper divisors (1313343).

40712641 is a wasteful number, since it uses less digits than its factorization.

40712641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313342.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 40712641 is about 6380.6458137088. The cubic root of 40712641 is about 344.0142441596.

The spelling of 40712641 in words is "forty million, seven hundred twelve thousand, six hundred forty-one".