1216575048 has 32 divisors (see below), whose sum is σ = 3275395200. Its totient is φ = 374330688.

The previous prime is 1216575023. The next prime is 1216575161. The reversal of 1216575048 is 8405756121.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 1216574997 and 1216575015.

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, 1949328 + ... + 1949951.

It is an arithmetic number, because the mean of its divisors is an integer number (102356100).

Almost surely, 2^1216575048 is an apocalyptic number.

It is an amenable number.

1216575048 is an abundant number, since it is smaller than the sum of its proper divisors (2058820152).

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

1216575048 is a wasteful number, since it uses less digits than its factorization.

1216575048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3899301 (or 3899297 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 1216575048 is about 34879.4358899338. The cubic root of 1216575048 is about 1067.5288850603.

The spelling of 1216575048 in words is "one billion, two hundred sixteen million, five hundred seventy-five thousand, forty-eight".