1684466028 has 72 divisors (see below), whose sum is σ = 4938915072. Its totient is φ = 474088032.

The previous prime is 1684466023. The next prime is 1684466051. The reversal of 1684466028 is 8206644861.

1684466028 is a `hidden beast` number, since 168 + 4 + 466 + 0 + 28 = 666.

It is not an unprimeable number, because it can be changed into a prime (1684466023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33000 + ... + 66767.

Almost surely, 2^1684466028 is an apocalyptic number.

1684466028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1684466028 is an abundant number, since it is smaller than the sum of its proper divisors (3254449044).

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

1684466028 is a wasteful number, since it uses less digits than its factorization.

1684466028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99851 (or 99846 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 1684466028 is about 41042.2468683185. The cubic root of 1684466028 is about 1189.8368601535.

The spelling of 1684466028 in words is "one billion, six hundred eighty-four million, four hundred sixty-six thousand, twenty-eight".