1520210216 has 32 divisors (see below), whose sum is σ = 3429048000. Its totient is φ = 617227776.

The previous prime is 1520210207. The next prime is 1520210233. The reversal of 1520210216 is 6120120251.

It is a super-2 number, since 2×1520210216² = 4622078201661533312, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713321 + ... + 715448.

It is an arithmetic number, because the mean of its divisors is an integer number (107157750).

Almost surely, 2^1520210216 is an apocalyptic number.

It is an amenable number.

1520210216 is an abundant number, since it is smaller than the sum of its proper divisors (1908837784).

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

1520210216 is a wasteful number, since it uses less digits than its factorization.

1520210216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428801 (or 1428797 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1520210216 is about 38989.8732493451. The cubic root of 1520210216 is about 1149.8324181767.

Adding to 1520210216 its reverse (6120120251), we get a palindrome (7640330467).

The spelling of 1520210216 in words is "one billion, five hundred twenty million, two hundred ten thousand, two hundred sixteen".