1000646032 has 10 divisors (see below), whose sum is σ = 1938751718. Its totient is φ = 500323008.

The previous prime is 1000645973. The next prime is 1000646047. The reversal of 1000646032 is 2306460001.

It can be written as a sum of positive squares in only one way, i.e., 950858896 + 49787136 = 30836^2 + 7056^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1000645994 and 1000646012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31270173 + ... + 31270204.

Almost surely, 2^1000646032 is an apocalyptic number.

It is an amenable number.

1000646032 is a deficient number, since it is larger than the sum of its proper divisors (938105686).

1000646032 is an equidigital number, since it uses as much as digits as its factorization.

1000646032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62540385 (or 62540379 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1000646032 is about 31632.9896152735. The cubic root of 1000646032 is about 1000.2152976436.

The spelling of 1000646032 in words is "one billion, six hundred forty-six thousand, thirty-two".