40872971 has 8 divisors (see below), whose sum is σ = 43117200. Its totient is φ = 38638080.

The previous prime is 40872959. The next prime is 40873013. The reversal of 40872971 is 17927804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40872971 - 2⁶ = 40872907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40872071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7835 + ... + 11963.

It is an arithmetic number, because the mean of its divisors is an integer number (5389650).

Almost surely, 2^40872971 is an apocalyptic number.

40872971 is a deficient number, since it is larger than the sum of its proper divisors (2244229).

40872971 is a wasteful number, since it uses less digits than its factorization.

40872971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 40872971 is about 6393.1972439461. The cubic root of 40872971 is about 344.4652388841.

The spelling of 40872971 in words is "forty million, eight hundred seventy-two thousand, nine hundred seventy-one".