40727644 has 12 divisors (see below), whose sum is σ = 71979768. Its totient is φ = 20162000.

The previous prime is 40727633. The next prime is 40727647. The reversal of 40727644 is 44672704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40727647) 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, 50002 + ... + 50809.

It is an arithmetic number, because the mean of its divisors is an integer number (5998314).

Almost surely, 2^40727644 is an apocalyptic number.

It is an amenable number.

40727644 is a deficient number, since it is larger than the sum of its proper divisors (31252124).

40727644 is a wasteful number, since it uses less digits than its factorization.

40727644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100916 (or 100914 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 34.

The square root of 40727644 is about 6381.8213701106. The cubic root of 40727644 is about 344.0564964897.

The spelling of 40727644 in words is "forty million, seven hundred twenty-seven thousand, six hundred forty-four".