1397800 has 48 divisors (see below), whose sum is σ = 3375900. Its totient is φ = 537600.

The previous prime is 1397783. The next prime is 1397833. The reversal of 1397800 is 87931.

It can be written as a sum of positive squares in 6 ways, for example, as 702244 + 695556 = 838^2 + 834^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5680 + ... + 5920.

2^1397800 is an apocalyptic number.

1397800 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 1397800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1687950).

1397800 is an abundant number, since it is smaller than the sum of its proper divisors (1978100).

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

1397800 is a wasteful number, since it uses less digits than its factorization.

1397800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1397800 is about 1182.2859214251. The cubic root of 1397800 is about 111.8102654949.

It can be divided in two parts, 1397 and 800, that added together give a cube (2197 = 13³).

The spelling of 1397800 in words is "one million, three hundred ninety-seven thousand, eight hundred".