40673613 has 8 divisors (see below), whose sum is σ = 54290176. Its totient is φ = 27086400.

The previous prime is 40673593. The next prime is 40673617. The reversal of 40673613 is 31637604.

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

It is a de Polignac number, because none of the positive numbers 2^k-40673613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40673617) 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, 3868 + ... + 9813.

It is an arithmetic number, because the mean of its divisors is an integer number (6786272).

Almost surely, 2^40673613 is an apocalyptic number.

It is an amenable number.

40673613 is a deficient number, since it is larger than the sum of its proper divisors (13616563).

40673613 is a wasteful number, since it uses less digits than its factorization.

40673613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14675.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 40673613 is about 6377.5867693039. The cubic root of 40673613 is about 343.9042825679.

The spelling of 40673613 in words is "forty million, six hundred seventy-three thousand, six hundred thirteen".