1213468520 has 32 divisors (see below), whose sum is σ = 2978514720. Its totient is φ = 441261120.

The previous prime is 1213468511. The next prime is 1213468567. The reversal of 1213468520 is 258643121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1378502 + ... + 1379381.

It is an arithmetic number, because the mean of its divisors is an integer number (93078585).

Almost surely, 2^1213468520 is an apocalyptic number.

1213468520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213468520 is an abundant number, since it is smaller than the sum of its proper divisors (1765046200).

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

1213468520 is a wasteful number, since it uses less digits than its factorization.

1213468520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757905 (or 2757901 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1213468520 is about 34834.8750536011. The cubic root of 1213468520 is about 1066.6194644911.

The spelling of 1213468520 in words is "one billion, two hundred thirteen million, four hundred sixty-eight thousand, five hundred twenty".