40447471 has 8 divisors (see below), whose sum is σ = 43137360. Its totient is φ = 37792128.

The previous prime is 40447457. The next prime is 40447483. The reversal of 40447471 is 17474404.

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 40447471 - 2¹⁹ = 39923183 is a prime.

It is a super-3 number, since 3×40447471³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40447171) 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, 6196 + ... + 10921.

It is an arithmetic number, because the mean of its divisors is an integer number (5392170).

Almost surely, 2^40447471 is an apocalyptic number.

40447471 is a deficient number, since it is larger than the sum of its proper divisors (2689889).

40447471 is a wasteful number, since it uses less digits than its factorization.

40447471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17273.

The product of its (nonzero) digits is 12544, while the sum is 31.

The square root of 40447471 is about 6359.8326235837. The cubic root of 40447471 is about 343.2657376797.

The spelling of 40447471 in words is "forty million, four hundred forty-seven thousand, four hundred seventy-one".