40673659 has 8 divisors (see below), whose sum is σ = 44735040. Its totient is φ = 36745536.

The previous prime is 40673621. The next prime is 40673663. The reversal of 40673659 is 95637604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40673659 - 2⁷ = 40673531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40673359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32674 + ... + 33895.

It is an arithmetic number, because the mean of its divisors is an integer number (5591880).

Almost surely, 2^40673659 is an apocalyptic number.

40673659 is a deficient number, since it is larger than the sum of its proper divisors (4061381).

40673659 is a wasteful number, since it uses less digits than its factorization.

40673659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66629.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 40673659 is about 6377.5903756827. The cubic root of 40673659 is about 343.9044122146.

The spelling of 40673659 in words is "forty million, six hundred seventy-three thousand, six hundred fifty-nine".