1213288480 has 24 divisors (see below), whose sum is σ = 2866394412. Its totient is φ = 485315328.

The previous prime is 1213288471. The next prime is 1213288499. The reversal of 1213288480 is 848823121.

It can be written as a sum of positive squares in 2 ways, for example, as 1210204944 + 3083536 = 34788^2 + 1756^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3791367 + ... + 3791686.

Almost surely, 2^1213288480 is an apocalyptic number.

1213288480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213288480 is an abundant number, since it is smaller than the sum of its proper divisors (1653105932).

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

1213288480 is an equidigital number, since it uses as much as digits as its factorization.

1213288480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7583068 (or 7583060 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 1213288480 is about 34832.2907658971. The cubic root of 1213288480 is about 1066.5667111197.

The spelling of 1213288480 in words is "one billion, two hundred thirteen million, two hundred eighty-eight thousand, four hundred eighty".