1397120 has 64 divisors (see below), whose sum is σ = 3488400. Its totient is φ = 534528.

The previous prime is 1397119. The next prime is 1397131. The reversal of 1397120 is 217931.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23651 + ... + 23709.

2^1397120 is an apocalyptic number.

1397120 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 1397120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1744200).

1397120 is an abundant number, since it is smaller than the sum of its proper divisors (2091280).

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

1397120 is an equidigital number, since it uses as much as digits as its factorization.

1397120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 1397120 is about 1181.9983079514. The cubic root of 1397120 is about 111.7921314478.

The spelling of 1397120 in words is "one million, three hundred ninety-seven thousand, one hundred twenty".