1897224 has 64 divisors (see below), whose sum is σ = 5667840. Its totient is φ = 517440.

The previous prime is 1897219. The next prime is 1897229. The reversal of 1897224 is 4227981.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1897219) and next prime (1897229).

It is not an unprimeable number, because it can be changed into a prime (1897229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3619 + ... + 4109.

It is an arithmetic number, because the mean of its divisors is an integer number (88560).

2^1897224 is an apocalyptic number.

1897224 is a gapful number since it is divisible by the number (14) 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 1897224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2833920).

1897224 is an abundant number, since it is smaller than the sum of its proper divisors (3770616).

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

1897224 is a wasteful number, since it uses less digits than its factorization.

1897224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 526 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 1897224 is about 1377.3975460992. The cubic root of 1897224 is about 123.7958834038.

The spelling of 1897224 in words is "one million, eight hundred ninety-seven thousand, two hundred twenty-four".