40266673 has 4 divisors (see below), whose sum is σ = 40442740. Its totient is φ = 40090608.

The previous prime is 40266661. The next prime is 40266683. The reversal of 40266673 is 37666204.

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 15186609 + 25080064 = 3897^2 + 5008^2 .

It is a cyclic number.

It is not a de Polignac number, because 40266673 - 2⁵ = 40266641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40266683) 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, 87690 + ... + 88147.

It is an arithmetic number, because the mean of its divisors is an integer number (10110685).

Almost surely, 2^40266673 is an apocalyptic number.

It is an amenable number.

40266673 is a deficient number, since it is larger than the sum of its proper divisors (176067).

40266673 is a wasteful number, since it uses less digits than its factorization.

40266673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176066.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 40266673 is about 6345.6026506550. The cubic root of 40266673 is about 342.7535139772.

The spelling of 40266673 in words is "forty million, two hundred sixty-six thousand, six hundred seventy-three".