1634898168 has 96 divisors (see below), whose sum is σ = 4833628800. Its totient is φ = 516271968.

The previous prime is 1634898163. The next prime is 1634898191. The reversal of 1634898168 is 8618984361.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1634898163) 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, 14805 + ... + 59067.

It is an arithmetic number, because the mean of its divisors is an integer number (50350300).

Almost surely, 2^1634898168 is an apocalyptic number.

1634898168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1634898168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2416814400).

1634898168 is an abundant number, since it is smaller than the sum of its proper divisors (3198730632).

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

1634898168 is a wasteful number, since it uses less digits than its factorization.

1634898168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44303 (or 44287 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 1634898168 is about 40433.8740167202. The cubic root of 1634898168 is about 1178.0495807673.

The spelling of 1634898168 in words is "one billion, six hundred thirty-four million, eight hundred ninety-eight thousand, one hundred sixty-eight".