1212604304 has 10 divisors (see below), whose sum is σ = 2349420870. Its totient is φ = 606302144.

The previous prime is 1212604297. The next prime is 1212604313. The reversal of 1212604304 is 4034062121.

It can be written as a sum of positive squares in only one way, i.e., 964226704 + 248377600 = 31052^2 + 15760^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1212604304.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37893869 + ... + 37893900.

It is an arithmetic number, because the mean of its divisors is an integer number (234942087).

Almost surely, 2^1212604304 is an apocalyptic number.

It is an amenable number.

1212604304 is a deficient number, since it is larger than the sum of its proper divisors (1136816566).

1212604304 is an equidigital number, since it uses as much as digits as its factorization.

1212604304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75787777 (or 75787771 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1212604304 is about 34822.4683789073. The cubic root of 1212604304 is about 1066.3661936653.

Adding to 1212604304 its reverse (4034062121), we get a palindrome (5246666425).

The spelling of 1212604304 in words is "one billion, two hundred twelve million, six hundred four thousand, three hundred four".