41640667 has 4 divisors (see below), whose sum is σ = 44090136. Its totient is φ = 39191200.

The previous prime is 41640631. The next prime is 41640691. The reversal of 41640667 is 76604614.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 41640667 - 2⁷ = 41640539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41640617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1224709 + ... + 1224742.

It is an arithmetic number, because the mean of its divisors is an integer number (11022534).

Almost surely, 2^41640667 is an apocalyptic number.

41640667 is a deficient number, since it is larger than the sum of its proper divisors (2449469).

41640667 is a wasteful number, since it uses less digits than its factorization.

41640667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449468.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 41640667 is about 6452.9580038925. The cubic root of 41640667 is about 346.6085135237.

The spelling of 41640667 in words is "forty-one million, six hundred forty thousand, six hundred sixty-seven".