406145860 has 12 divisors (see below), whose sum is σ = 852906348. Its totient is φ = 162458336.

The previous prime is 406145851. The next prime is 406145897. The reversal of 406145860 is 68541604.

It can be written as a sum of positive squares in 2 ways, for example, as 256768576 + 149377284 = 16024^2 + 12222^2 .

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, 10153627 + ... + 10153666.

It is an arithmetic number, because the mean of its divisors is an integer number (71075529).

Almost surely, 2^406145860 is an apocalyptic number.

It is an amenable number.

406145860 is an abundant number, since it is smaller than the sum of its proper divisors (446760488).

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

406145860 is a wasteful number, since it uses less digits than its factorization.

406145860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20307302 (or 20307300 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 406145860 is about 20153.0608097132. The cubic root of 406145860 is about 740.5607267005.

The spelling of 406145860 in words is "four hundred six million, one hundred forty-five thousand, eight hundred sixty".