408746231 has 4 divisors (see below), whose sum is σ = 408790464. Its totient is φ = 408702000.

The previous prime is 408746227. The next prime is 408746243. The reversal of 408746231 is 132647804.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 408746231 - 2² = 408746227 is a prime.

It is a super-2 number, since 2×408746231² = 334146962713410722, 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 = 408746191 and 408746200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408746291) 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, 2390 + ... + 28691.

It is an arithmetic number, because the mean of its divisors is an integer number (102197616).

Almost surely, 2^408746231 is an apocalyptic number.

408746231 is a deficient number, since it is larger than the sum of its proper divisors (44233).

408746231 is a wasteful number, since it uses less digits than its factorization.

408746231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44232.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 408746231 is about 20217.4734079212. The cubic root of 408746231 is about 742.1378590512.

The spelling of 408746231 in words is "four hundred eight million, seven hundred forty-six thousand, two hundred thirty-one".