1215349448 has 32 divisors (see below), whose sum is σ = 2448856800. Its totient is φ = 563388672.

The previous prime is 1215349441. The next prime is 1215349469. The reversal of 1215349448 is 8449435121.

It is not an unprimeable number, because it can be changed into a prime (1215349441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57578 + ... + 75801.

It is an arithmetic number, because the mean of its divisors is an integer number (76526775).

Almost surely, 2^1215349448 is an apocalyptic number.

It is an amenable number.

1215349448 is an abundant number, since it is smaller than the sum of its proper divisors (1233507352).

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

1215349448 is a wasteful number, since it uses less digits than its factorization.

1215349448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133469 (or 133465 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 1215349448 is about 34861.8623713651. The cubic root of 1215349448 is about 1067.1702818909.

The spelling of 1215349448 in words is "one billion, two hundred fifteen million, three hundred forty-nine thousand, four hundred forty-eight".