1692478998 has 96 divisors (see below), whose sum is σ = 4495046400. Its totient is φ = 449437248.

The previous prime is 1692478993. The next prime is 1692478999. The reversal of 1692478998 is 8998742961.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1692478993) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120213 + ... + 133551.

It is an arithmetic number, because the mean of its divisors is an integer number (46823400).

Almost surely, 2^1692478998 is an apocalyptic number.

1692478998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1692478998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2247523200).

1692478998 is an abundant number, since it is smaller than the sum of its proper divisors (2802567402).

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

1692478998 is a wasteful number, since it uses less digits than its factorization.

1692478998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13426 (or 13423 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 63.

The square root of 1692478998 is about 41139.7496103221. The cubic root of 1692478998 is about 1191.7205528395.

It can be divided in two parts, 1692 and 478998, that added together give a triangular number (480690 = T₉₈₀).

The spelling of 1692478998 in words is "one billion, six hundred ninety-two million, four hundred seventy-eight thousand, nine hundred ninety-eight".