406852681 has 8 divisors (see below), whose sum is σ = 446886720. Its totient is φ = 368680752.

The previous prime is 406852673. The next prime is 406852709. The reversal of 406852681 is 186258604.

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 406852681 - 2³ = 406852673 is a prime.

It is a super-2 number, since 2×406852681² = 331058208073775522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406852601) 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, 465070 + ... + 465943.

It is an arithmetic number, because the mean of its divisors is an integer number (55860840).

Almost surely, 2^406852681 is an apocalyptic number.

It is an amenable number.

406852681 is a deficient number, since it is larger than the sum of its proper divisors (40034039).

406852681 is a wasteful number, since it uses less digits than its factorization.

406852681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931055.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 406852681 is about 20170.5895055152. The cubic root of 406852681 is about 740.9900802621.

The spelling of 406852681 in words is "four hundred six million, eight hundred fifty-two thousand, six hundred eighty-one".