40330973 has 4 divisors (see below), whose sum is σ = 40784220. Its totient is φ = 39877728.

The previous prime is 40330957. The next prime is 40330991. The reversal of 40330973 is 37903304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25989604 + 14341369 = 5098^2 + 3787^2 .

It is a cyclic number.

It is not a de Polignac number, because 40330973 - 2⁴ = 40330957 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 (40330993) 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, 226490 + ... + 226667.

It is an arithmetic number, because the mean of its divisors is an integer number (10196055).

Almost surely, 2^40330973 is an apocalyptic number.

It is an amenable number.

40330973 is a deficient number, since it is larger than the sum of its proper divisors (453247).

40330973 is an equidigital number, since it uses as much as digits as its factorization.

40330973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453246.

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 40330973 is about 6350.6671303100. The cubic root of 40330973 is about 342.9358593980.

The spelling of 40330973 in words is "forty million, three hundred thirty thousand, nine hundred seventy-three".