405879606 has 32 divisors (see below), whose sum is σ = 983952000. Its totient is φ = 122993640.

The previous prime is 405879589. The next prime is 405879611. The reversal of 405879606 is 606978504.

405879606 = 179² + 180² + ... + 1069².

405879606 is a `hidden beast` number, since 4 + 0 + 587 + 9 + 60 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341056 + ... + 342243.

It is an arithmetic number, because the mean of its divisors is an integer number (30748500).

Almost surely, 2^405879606 is an apocalyptic number.

405879606 is an abundant number, since it is smaller than the sum of its proper divisors (578072394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405879606 is a wasteful number, since it uses less digits than its factorization.

405879606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683321 (or 683315 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 405879606 is about 20146.4539311513. The cubic root of 405879606 is about 740.3988633749.

The spelling of 405879606 in words is "four hundred five million, eight hundred seventy-nine thousand, six hundred six".