1684563072 has 32 divisors (see below), whose sum is σ = 4474621680. Its totient is φ = 561520896.

The previous prime is 1684563061. The next prime is 1684563091. The reversal of 1684563072 is 2703654861.

It is a tau number, because it is divible by the number of its divisors (32).

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, 2193058 + ... + 2193825.

Almost surely, 2^1684563072 is an apocalyptic number.

1684563072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1684563072 is an abundant number, since it is smaller than the sum of its proper divisors (2790058608).

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

1684563072 is an equidigital number, since it uses as much as digits as its factorization.

1684563072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4386900 (or 4386888 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 1684563072 is about 41043.4290965070. The cubic root of 1684563072 is about 1189.8597089988.

The spelling of 1684563072 in words is "one billion, six hundred eighty-four million, five hundred sixty-three thousand, seventy-two".