1218932480 has 36 divisors (see below), whose sum is σ = 2919727272. Its totient is φ = 487572480.

The previous prime is 1218932459. The next prime is 1218932483. The reversal of 1218932480 is 842398121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218932483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474866 + ... + 477425.

Almost surely, 2^1218932480 is an apocalyptic number.

1218932480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1218932480 is an abundant number, since it is smaller than the sum of its proper divisors (1700794792).

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

1218932480 is an frugal number, since it uses more digits than its factorization.

1218932480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952312 (or 952298 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 1218932480 is about 34913.2135444447. The cubic root of 1218932480 is about 1068.2179788584.

The spelling of 1218932480 in words is "one billion, two hundred eighteen million, nine hundred thirty-two thousand, four hundred eighty".