408466643 has 8 divisors (see below), whose sum is σ = 451776528. Its totient is φ = 366855264.

The previous prime is 408466631. The next prime is 408466649. The reversal of 408466643 is 346664804.

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 408466643 - 2¹⁶ = 408401107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 408466643.

It is not an unprimeable number, because it can be changed into a prime (408466649) 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, 424121 + ... + 425082.

It is an arithmetic number, because the mean of its divisors is an integer number (56472066).

Almost surely, 2^408466643 is an apocalyptic number.

408466643 is a deficient number, since it is larger than the sum of its proper divisors (43309885).

408466643 is a wasteful number, since it uses less digits than its factorization.

408466643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849253.

The product of its (nonzero) digits is 331776, while the sum is 41.

The square root of 408466643 is about 20210.5577112558. The cubic root of 408466643 is about 741.9686096479.

The spelling of 408466643 in words is "four hundred eight million, four hundred sixty-six thousand, six hundred forty-three".