1397400 has 96 divisors (see below), whose sum is σ = 4620240. Its totient is φ = 348160.

The previous prime is 1397359. The next prime is 1397437. The reversal of 1397400 is 47931.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10132 + ... + 10268.

2^1397400 is an apocalyptic number.

1397400 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 1397400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2310120).

1397400 is an abundant number, since it is smaller than the sum of its proper divisors (3222840).

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

1397400 is a wasteful number, since it uses less digits than its factorization.

1397400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 1397400 is about 1182.1167455036. The cubic root of 1397400 is about 111.7995991209.

The spelling of 1397400 in words is "one million, three hundred ninety-seven thousand, four hundred".