40447231 has 8 divisors (see below), whose sum is σ = 44179200. Its totient is φ = 36724440.

The previous prime is 40447201. The next prime is 40447247. The reversal of 40447231 is 13274404.

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 40447231 - 2¹⁹ = 39922943 is a prime.

It is a super-2 number, since 2×40447231² = 3271956991134722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40447196 and 40447205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40447201) 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, 9660 + ... + 13198.

It is an arithmetic number, because the mean of its divisors is an integer number (5522400).

Almost surely, 2^40447231 is an apocalyptic number.

40447231 is a deficient number, since it is larger than the sum of its proper divisors (3731969).

40447231 is a wasteful number, since it uses less digits than its factorization.

40447231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4589.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 40447231 is about 6359.8137551347. The cubic root of 40447231 is about 343.2650587420.

The spelling of 40447231 in words is "forty million, four hundred forty-seven thousand, two hundred thirty-one".