1520449448 has 32 divisors (see below), whose sum is σ = 3260217600. Its totient is φ = 651198912.

The previous prime is 1520449433. The next prime is 1520449459. The reversal of 1520449448 is 8449440251.

It is a happy number.

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, 87761 + ... + 103647.

It is an arithmetic number, because the mean of its divisors is an integer number (101881800).

Almost surely, 2^1520449448 is an apocalyptic number.

It is an amenable number.

1520449448 is an abundant number, since it is smaller than the sum of its proper divisors (1739768152).

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

1520449448 is a wasteful number, since it uses less digits than its factorization.

1520449448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17609 (or 17605 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 1520449448 is about 38992.9410021865. The cubic root of 1520449448 is about 1149.8927305111.

Adding to 1520449448 its reverse (8449440251), we get a palindrome (9969889699).

The spelling of 1520449448 in words is "one billion, five hundred twenty million, four hundred forty-nine thousand, four hundred forty-eight".