406650128 has 40 divisors (see below), whose sum is σ = 811406400. Its totient is φ = 197285760.

The previous prime is 406650121. The next prime is 406650137. The reversal of 406650128 is 821056604.

It is a junction number, because it is equal to n+sod(n) for n = 406650094 and 406650103.

It is not an unprimeable number, because it can be changed into a prime (406650121) 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, 289973 + ... + 291371.

It is an arithmetic number, because the mean of its divisors is an integer number (20285160).

Almost surely, 2^406650128 is an apocalyptic number.

It is an amenable number.

406650128 is a deficient number, since it is larger than the sum of its proper divisors (404756272).

406650128 is a wasteful number, since it uses less digits than its factorization.

406650128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 406650128 is about 20165.5678819120. The cubic root of 406650128 is about 740.8670917004.

The spelling of 406650128 in words is "four hundred six million, six hundred fifty thousand, one hundred twenty-eight".