1217242048 has 28 divisors (see below), whose sum is σ = 2635053912. Its totient is φ = 553291520.

The previous prime is 1217242031. The next prime is 1217242067. The reversal of 1217242048 is 8402427121.

It is a congruent number.

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, 863815 + ... + 865222.

Almost surely, 2^1217242048 is an apocalyptic number.

It is an amenable number.

1217242048 is an abundant number, since it is smaller than the sum of its proper divisors (1417811864).

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

1217242048 is a wasteful number, since it uses less digits than its factorization.

1217242048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729060 (or 1729050 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 1217242048 is about 34888.9960875919. The cubic root of 1217242048 is about 1067.7239440441.

Adding to 1217242048 its reverse (8402427121), we get a palindrome (9619669169).

The spelling of 1217242048 in words is "one billion, two hundred seventeen million, two hundred forty-two thousand, forty-eight".