40540973 has 12 divisors (see below), whose sum is σ = 46239648. Its totient is φ = 35247960.

The previous prime is 40540967. The next prime is 40540987. The reversal of 40540973 is 37904504.

It is not a de Polignac number, because 40540973 - 2⁴ = 40540957 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 (40540673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2336 + ... + 9302.

It is an arithmetic number, because the mean of its divisors is an integer number (3853304).

Almost surely, 2^40540973 is an apocalyptic number.

It is an amenable number.

40540973 is a deficient number, since it is larger than the sum of its proper divisors (5698675).

40540973 is a wasteful number, since it uses less digits than its factorization.

40540973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7024 (or 7001 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 40540973 is about 6367.1793598107. The cubic root of 40540973 is about 343.5300420717.

The spelling of 40540973 in words is "forty million, five hundred forty thousand, nine hundred seventy-three".