1684889436 has 24 divisors (see below), whose sum is σ = 3932248320. Its totient is φ = 561509872.

The previous prime is 1684889413. The next prime is 1684889441. The reversal of 1684889436 is 6349884861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57595 + ... + 81773.

It is an arithmetic number, because the mean of its divisors is an integer number (163843680).

Almost surely, 2^1684889436 is an apocalyptic number.

It is an amenable number.

1684889436 is an abundant number, since it is smaller than the sum of its proper divisors (2247358884).

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

1684889436 is a wasteful number, since it uses less digits than its factorization.

1684889436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29993 (or 29991 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 57.

The square root of 1684889436 is about 41047.4047413475. The cubic root of 1684889436 is about 1189.9365444119.

The spelling of 1684889436 in words is "one billion, six hundred eighty-four million, eight hundred eighty-nine thousand, four hundred thirty-six".