1520866460 has 12 divisors (see below), whose sum is σ = 3193819608. Its totient is φ = 608346576.

The previous prime is 1520866453. The next prime is 1520866471. The reversal of 1520866460 is 646680251.

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, 38021642 + ... + 38021681.

It is an arithmetic number, because the mean of its divisors is an integer number (266151634).

Almost surely, 2^1520866460 is an apocalyptic number.

1520866460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1520866460 is an abundant number, since it is smaller than the sum of its proper divisors (1672953148).

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

1520866460 is a wasteful number, since it uses less digits than its factorization.

1520866460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76043332 (or 76043330 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 1520866460 is about 38998.2879111378. The cubic root of 1520866460 is about 1149.9978475070.

The spelling of 1520866460 in words is "one billion, five hundred twenty million, eight hundred sixty-six thousand, four hundred sixty".