40549673 has 16 divisors (see below), whose sum is σ = 42823680. Its totient is φ = 38362896.

The previous prime is 40549661. The next prime is 40549679. The reversal of 40549673 is 37694504.

It is a cyclic number.

It is not a de Polignac number, because 40549673 - 2¹⁰ = 40548649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40549679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248690 + ... + 248852.

It is an arithmetic number, because the mean of its divisors is an integer number (2676480).

Almost surely, 2^40549673 is an apocalyptic number.

It is an amenable number.

40549673 is a deficient number, since it is larger than the sum of its proper divisors (2274007).

40549673 is a wasteful number, since it uses less digits than its factorization.

40549673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 40549673 is about 6367.8625142194. The cubic root of 40549673 is about 343.5546139010.

The spelling of 40549673 in words is "forty million, five hundred forty-nine thousand, six hundred seventy-three".