1218952484 has 6 divisors (see below), whose sum is σ = 2133166854. Its totient is φ = 609476240.

The previous prime is 1218952387. The next prime is 1218952487. The reversal of 1218952484 is 4842598121.

It can be written as a sum of positive squares in only one way, i.e., 1147718884 + 71233600 = 33878^2 + 8440^2 .

It is not an unprimeable number, because it can be changed into a prime (1218952487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152369057 + ... + 152369064.

It is an arithmetic number, because the mean of its divisors is an integer number (355527809).

Almost surely, 2^1218952484 is an apocalyptic number.

It is an amenable number.

1218952484 is a deficient number, since it is larger than the sum of its proper divisors (914214370).

1218952484 is a wasteful number, since it uses less digits than its factorization.

1218952484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304738125 (or 304738123 counting only the distinct ones).

The product of its digits is 184320, while the sum is 44.

The square root of 1218952484 is about 34913.5000250619. The cubic root of 1218952484 is about 1068.2238223638.

The spelling of 1218952484 in words is "one billion, two hundred eighteen million, nine hundred fifty-two thousand, four hundred eighty-four".