1204382885 has 4 divisors (see below), whose sum is σ = 1445259468. Its totient is φ = 963506304.

The previous prime is 1204382863. The next prime is 1204382897. The reversal of 1204382885 is 5882834021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5882834021 = 5653 ⋅1040657.

It can be written as a sum of positive squares in 2 ways, for example, as 940710241 + 263672644 = 30671^2 + 16238^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204382885 - 2¹² = 1204378789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120438284 + ... + 120438293.

It is an arithmetic number, because the mean of its divisors is an integer number (361314867).

Almost surely, 2^1204382885 is an apocalyptic number.

It is an amenable number.

1204382885 is a deficient number, since it is larger than the sum of its proper divisors (240876583).

1204382885 is an equidigital number, since it uses as much as digits as its factorization.

1204382885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240876582.

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 1204382885 is about 34704.2199883530. The cubic root of 1204382885 is about 1063.9507501301.

The spelling of 1204382885 in words is "one billion, two hundred four million, three hundred eighty-two thousand, eight hundred eighty-five".