1212404488 has 8 divisors (see below), whose sum is σ = 2273258430. Its totient is φ = 606202240.

The previous prime is 1212404483. The next prime is 1212404491. The reversal of 1212404488 is 8844042121.

It can be written as a sum of positive squares in only one way, i.e., 1205339524 + 7064964 = 34718^2 + 2658^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1212404483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75775273 + ... + 75775288.

Almost surely, 2^1212404488 is an apocalyptic number.

It is an amenable number.

1212404488 is a deficient number, since it is larger than the sum of its proper divisors (1060853942).

1212404488 is a wasteful number, since it uses less digits than its factorization.

1212404488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151550567 (or 151550563 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 34.

The square root of 1212404488 is about 34819.5991935576. The cubic root of 1212404488 is about 1066.3076176095.

The spelling of 1212404488 in words is "one billion, two hundred twelve million, four hundred four thousand, four hundred eighty-eight".