406646830 has 16 divisors (see below), whose sum is σ = 736056720. Its totient is φ = 161749312.

The previous prime is 406646827. The next prime is 406646861. The reversal of 406646830 is 38646604.

It is a self number, because there is not a number n which added to its sum of digits gives 406646830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111799 + ... + 115378.

It is an arithmetic number, because the mean of its divisors is an integer number (46003545).

Almost surely, 2^406646830 is an apocalyptic number.

406646830 is a deficient number, since it is larger than the sum of its proper divisors (329409890).

406646830 is a wasteful number, since it uses less digits than its factorization.

406646830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227363.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 406646830 is about 20165.4861086957. The cubic root of 406646830 is about 740.8650888434.

The spelling of 406646830 in words is "four hundred six million, six hundred forty-six thousand, eight hundred thirty".