1854224 has 30 divisors (see below), whose sum is σ = 3825834. Its totient is φ = 870400.

The previous prime is 1854221. The next prime is 1854227. The reversal of 1854224 is 4224581.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1854221) and next prime (1854227).

It can be written as a sum of positive squares in 3 ways, for example, as 1364224 + 490000 = 1168^2 + 700^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1854193 and 1854202.

It is not an unprimeable number, because it can be changed into a prime (1854221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4424 + ... + 4824.

2^1854224 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 1854224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1912917).

1854224 is an abundant number, since it is smaller than the sum of its proper divisors (1971610).

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

1854224 is a wasteful number, since it uses less digits than its factorization.

1854224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 420 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 1854224 is about 1361.6989388261. The cubic root of 1854224 is about 122.8534619928.

The spelling of 1854224 in words is "one million, eight hundred fifty-four thousand, two hundred twenty-four".