1398000 has 80 divisors (see below), whose sum is σ = 4526496. Its totient is φ = 371200.

The previous prime is 1397999. The next prime is 1398011. The reversal of 1398000 is 8931.

1398000 = T₆₁ + T₆₂ + ... + T₂₀₄.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 5884 + ... + 6116.

2^1398000 is an apocalyptic number.

1398000 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 1398000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2263248).

1398000 is an abundant number, since it is smaller than the sum of its proper divisors (3128496).

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

1398000 is a wasteful number, since it uses less digits than its factorization.

1398000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1398000 is about 1182.3705003086. The cubic root of 1398000 is about 111.8155979189.

The spelling of 1398000 in words is "one million, three hundred ninety-eight thousand".