1698434444 has 24 divisors (see below), whose sum is σ = 3407808768. Its totient is φ = 725556240.

The previous prime is 1698434429. The next prime is 1698434447. The reversal of 1698434444 is 4444348961.

It is not an unprimeable number, because it can be changed into a prime (1698434447) 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, 88814 + ... + 106229.

It is an arithmetic number, because the mean of its divisors is an integer number (141992032).

Almost surely, 2^1698434444 is an apocalyptic number.

1698434444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1698434444 is an abundant number, since it is smaller than the sum of its proper divisors (1709374324).

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

1698434444 is a wasteful number, since it uses less digits than its factorization.

1698434444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195365 (or 195363 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 47.

The square root of 1698434444 is about 41212.0667280834. The cubic root of 1698434444 is about 1193.1167137643.

The spelling of 1698434444 in words is "one billion, six hundred ninety-eight million, four hundred thirty-four thousand, four hundred forty-four".