1204864 has 16 divisors (see below), whose sum is σ = 2400570. Its totient is φ = 602368.

The previous prime is 1204859. The next prime is 1204871. The reversal of 1204864 is 4684021.

It can be written as a sum of positive squares in only one way, i.e., 627264 + 577600 = 792^2 + 760^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a plaindrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4579 + ... + 4834.

2^1204864 is an apocalyptic number.

It is an amenable number.

1204864 is a deficient number, since it is larger than the sum of its proper divisors (1195706).

1204864 is an frugal number, since it uses more digits than its factorization.

1204864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9427 (or 9415 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 1204864 is about 1097.6629719545. The cubic root of 1204864 is about 106.4092403455.

Adding to 1204864 its reverse (4684021), we get a palindrome (5888885).

The spelling of 1204864 in words is "one million, two hundred four thousand, eight hundred sixty-four".