1698345992 has 64 divisors (see below), whose sum is σ = 3720038400. Its totient is φ = 711809280.

The previous prime is 1698345983. The next prime is 1698346009. The reversal of 1698345992 is 2995438961.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1153817 + ... + 1155287.

It is an arithmetic number, because the mean of its divisors is an integer number (58125600).

Almost surely, 2^1698345992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1698345992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1860019200).

1698345992 is an abundant number, since it is smaller than the sum of its proper divisors (2021692408).

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

1698345992 is a wasteful number, since it uses less digits than its factorization.

1698345992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926 (or 1922 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 56.

The square root of 1698345992 is about 41210.9935818102. The cubic root of 1698345992 is about 1193.0960014760.

The spelling of 1698345992 in words is "one billion, six hundred ninety-eight million, three hundred forty-five thousand, nine hundred ninety-two".