1897344 has 96 divisors (see below), whose sum is σ = 5754840. Its totient is φ = 622080.

The previous prime is 1897327. The next prime is 1897361. The reversal of 1897344 is 4437981.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1897327) and next prime (1897361).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 12.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 1897299 and 1897308.

It is a congruent number.

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, 31074 + ... + 31134.

2^1897344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1897344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2877420).

1897344 is an abundant number, since it is smaller than the sum of its proper divisors (3857496).

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

1897344 is an frugal number, since it uses more digits than its factorization.

1897344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 66 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 1897344 is about 1377.4411058190. The cubic root of 1897344 is about 123.7984933913.

The spelling of 1897344 in words is "one million, eight hundred ninety-seven thousand, three hundred forty-four".