1463505720 has 32 divisors (see below), whose sum is σ = 4390517520. Its totient is φ = 390268160.

The previous prime is 1463505713. The next prime is 1463505721. The reversal of 1463505720 is 275053641.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1463505721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6097821 + ... + 6098060.

Almost surely, 2^1463505720 is an apocalyptic number.

1463505720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1463505720 is an abundant number, since it is smaller than the sum of its proper divisors (2927011800).

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

1463505720 is a wasteful number, since it uses less digits than its factorization.

1463505720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12195895 (or 12195891 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 1463505720 is about 38255.7932867690. The cubic root of 1463505720 is about 1135.3544714930.

The spelling of 1463505720 in words is "one billion, four hundred sixty-three million, five hundred five thousand, seven hundred twenty".