1398180 has 48 divisors (see below), whose sum is σ = 4475520. Its totient is φ = 319488.

The previous prime is 1398161. The next prime is 1398197. The reversal of 1398180 is 818931.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1245 + ... + 2084.

It is an arithmetic number, because the mean of its divisors is an integer number (93240).

2^1398180 is an apocalyptic number.

1398180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1398180 is an abundant number, since it is smaller than the sum of its proper divisors (3077340).

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

1398180 is a wasteful number, since it uses less digits than its factorization.

1398180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3348 (or 3346 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1398180 is about 1182.4466161311. The cubic root of 1398180 is about 111.8203966656.

The spelling of 1398180 in words is "one million, three hundred ninety-eight thousand, one hundred eighty".