1864244 has 6 divisors (see below), whose sum is σ = 3262434. Its totient is φ = 932120.

The previous prime is 1864241. The next prime is 1864253. The reversal of 1864244 is 4424681.

It can be written as a sum of positive squares in only one way, i.e., 1795600 + 68644 = 1340^2 + 262^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1864241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 233027 + ... + 233034.

It is an arithmetic number, because the mean of its divisors is an integer number (543739).

2^1864244 is an apocalyptic number.

It is an amenable number.

1864244 is a deficient number, since it is larger than the sum of its proper divisors (1398190).

1864244 is a wasteful number, since it uses less digits than its factorization.

1864244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466065 (or 466063 counting only the distinct ones).

The product of its digits is 6144, while the sum is 29.

The square root of 1864244 is about 1365.3732090531. The cubic root of 1864244 is about 123.0743596021.

The spelling of 1864244 in words is "one million, eight hundred sixty-four thousand, two hundred forty-four".