1205304604 has 24 divisors (see below), whose sum is σ = 2515419648. Its totient is φ = 494099760.

The previous prime is 1205304601. The next prime is 1205304619. The reversal of 1205304604 is 4064035021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205304601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 935152 + ... + 936439.

It is an arithmetic number, because the mean of its divisors is an integer number (104809152).

Almost surely, 2^1205304604 is an apocalyptic number.

1205304604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1205304604 is an abundant number, since it is smaller than the sum of its proper divisors (1310115044).

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

1205304604 is a wasteful number, since it uses less digits than its factorization.

1205304604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871625 (or 1871623 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1205304604 is about 34717.4970872037. The cubic root of 1205304604 is about 1064.2220961645. Note that the first 3 decimals are identical.

Adding to 1205304604 its reverse (4064035021), we get a palindrome (5269339625).

It can be divided in two parts, 1205 and 304604, that added together give a square (305809 = 553²).

The spelling of 1205304604 in words is "one billion, two hundred five million, three hundred four thousand, six hundred four".