40727045 has 8 divisors (see below), whose sum is σ = 48981240. Its totient is φ = 32509120.

The previous prime is 40727041. The next prime is 40727059. The reversal of 40727045 is 54072704.

It can be written as a sum of positive squares in 4 ways, for example, as 188356 + 40538689 = 434^2 + 6367^2 .

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

It is not a de Polignac number, because 40727045 - 2² = 40727041 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40726999 and 40727017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40727041) 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, 6530 + ... + 11139.

It is an arithmetic number, because the mean of its divisors is an integer number (6122655).

Almost surely, 2^40727045 is an apocalyptic number.

It is an amenable number.

40727045 is a deficient number, since it is larger than the sum of its proper divisors (8254195).

40727045 is a wasteful number, since it uses less digits than its factorization.

40727045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18135.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 40727045 is about 6381.7744397620. The cubic root of 40727045 is about 344.0548097496.

Adding to 40727045 its reverse (54072704), we get a palindrome (94799749).

The spelling of 40727045 in words is "forty million, seven hundred twenty-seven thousand, forty-five".