406564468 has 12 divisors (see below), whose sum is σ = 742422240. Its totient is φ = 194443832.

The previous prime is 406564453. The next prime is 406564471. The reversal of 406564468 is 864465604.

It is a super-3 number, since 3×406564468³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2209498 + ... + 2209681.

It is an arithmetic number, because the mean of its divisors is an integer number (61868520).

Almost surely, 2^406564468 is an apocalyptic number.

It is an amenable number.

406564468 is a deficient number, since it is larger than the sum of its proper divisors (335857772).

406564468 is a wasteful number, since it uses less digits than its factorization.

406564468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4419206 (or 4419204 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 43.

The square root of 406564468 is about 20163.4438526756. The cubic root of 406564468 is about 740.8150673456.

The spelling of 406564468 in words is "four hundred six million, five hundred sixty-four thousand, four hundred sixty-eight".