406246660 has 24 divisors (see below), whose sum is σ = 853574400. Its totient is φ = 162411744.

The previous prime is 406246651. The next prime is 406246663. The reversal of 406246660 is 66642604.

It is a super-2 number, since 2×406246660² = 330072697522311200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (406246663) 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, 43747 + ... + 52213.

It is an arithmetic number, because the mean of its divisors is an integer number (35565600).

Almost surely, 2^406246660 is an apocalyptic number.

It is an amenable number.

406246660 is an abundant number, since it is smaller than the sum of its proper divisors (447327740).

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

406246660 is a wasteful number, since it uses less digits than its factorization.

406246660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10875 (or 10873 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 406246660 is about 20155.5615153734. The cubic root of 406246660 is about 740.6219874067.

The spelling of 406246660 in words is "four hundred six million, two hundred forty-six thousand, six hundred sixty".