1698480 has 120 divisors (see below), whose sum is σ = 6538272. Its totient is φ = 387072.

The previous prime is 1698469. The next prime is 1698497. The reversal of 1698480 is 848961.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4872 + ... + 5208.

2^1698480 is an apocalyptic number.

1698480 is a gapful number since it is divisible by the number (10) 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 1698480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3269136).

1698480 is an abundant number, since it is smaller than the sum of its proper divisors (4839792).

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

1698480 is a wasteful number, since it uses less digits than its factorization.

1698480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1698480 is about 1303.2574572969. The cubic root of 1698480 is about 119.3127381066.

It can be divided in two parts, 169 and 8480, that added together give a square (8649 = 93²).

The spelling of 1698480 in words is "one million, six hundred ninety-eight thousand, four hundred eighty".