1684645036 has 24 divisors (see below), whose sum is σ = 2964971520. Its totient is φ = 837522000.

The previous prime is 1684645009. The next prime is 1684645037. The reversal of 1684645036 is 6305464861.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1684644983 and 1684645001.

It is not an unprimeable number, because it can be changed into a prime (1684645037) 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, 1099591 + ... + 1101121.

It is an arithmetic number, because the mean of its divisors is an integer number (123540480).

Almost surely, 2^1684645036 is an apocalyptic number.

It is an amenable number.

1684645036 is a deficient number, since it is larger than the sum of its proper divisors (1280326484).

1684645036 is a wasteful number, since it uses less digits than its factorization.

1684645036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2925 (or 2923 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The square root of 1684645036 is about 41044.4275876763. The cubic root of 1684645036 is about 1189.8790066001.

The spelling of 1684645036 in words is "one billion, six hundred eighty-four million, six hundred forty-five thousand, thirty-six".