40736893 has 4 divisors (see below), whose sum is σ = 42880960. Its totient is φ = 38592828.

The previous prime is 40736881. The next prime is 40736911. The reversal of 40736893 is 39863704.

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 a de Polignac number, because none of the positive numbers 2^k-40736893 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 (40736873) 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, 1072005 + ... + 1072042.

It is an arithmetic number, because the mean of its divisors is an integer number (10720240).

Almost surely, 2^40736893 is an apocalyptic number.

It is an amenable number.

40736893 is a deficient number, since it is larger than the sum of its proper divisors (2144067).

40736893 is a wasteful number, since it uses less digits than its factorization.

40736893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144066.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 40736893 is about 6382.5459653652. The cubic root of 40736893 is about 344.0825388970.

The spelling of 40736893 in words is "forty million, seven hundred thirty-six thousand, eight hundred ninety-three".