40673837 has 4 divisors (see below), whose sum is σ = 40866816. Its totient is φ = 40480860.

The previous prime is 40673819. The next prime is 40673839. The reversal of 40673837 is 73837604.

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 40673837 - 2²² = 36479533 is a prime.

It is a super-2 number, since 2×40673837² = 3308722032605138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40673837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40673839) 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, 96173 + ... + 96594.

It is an arithmetic number, because the mean of its divisors is an integer number (10216704).

Almost surely, 2^40673837 is an apocalyptic number.

It is an amenable number.

40673837 is a deficient number, since it is larger than the sum of its proper divisors (192979).

40673837 is a wasteful number, since it uses less digits than its factorization.

40673837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192978.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 40673837 is about 6377.6043307813. The cubic root of 40673837 is about 343.9049138897.

The spelling of 40673837 in words is "forty million, six hundred seventy-three thousand, eight hundred thirty-seven".