200702128 has 20 divisors (see below), whose sum is σ = 424211688. Its totient is φ = 91228160.

The previous prime is 200702057. The next prime is 200702189. The reversal of 200702128 is 821207002.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 200702099 and 200702108.

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, 570001 + ... + 570352.

Almost surely, 2^200702128 is an apocalyptic number.

It is an amenable number.

200702128 is an abundant number, since it is smaller than the sum of its proper divisors (223509560).

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

200702128 is a wasteful number, since it uses less digits than its factorization.

200702128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140372 (or 1140366 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 200702128 is about 14166.9378483849. The cubic root of 200702128 is about 585.4870932801.

The spelling of 200702128 in words is "two hundred million, seven hundred two thousand, one hundred twenty-eight".