1485721636 has 12 divisors (see below), whose sum is σ = 2971443328. Its totient is φ = 636737832.

The previous prime is 1485721631. The next prime is 1485721651. The reversal of 1485721636 is 6361275841.

1485721636 is an admirable number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1485721592 and 1485721601.

It is not an unprimeable number, because it can be changed into a prime (1485721631) 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 3 ways as a sum of consecutive naturals, for example, 26530716 + ... + 26530771.

Almost surely, 2^1485721636 is an apocalyptic number.

It is an amenable number.

1485721636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1485721636 is a wasteful number, since it uses less digits than its factorization.

1485721636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53061498 (or 53061496 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 1485721636 is about 38545.0598131589. The cubic root of 1485721636 is about 1141.0705128401.

The spelling of 1485721636 in words is "one billion, four hundred eighty-five million, seven hundred twenty-one thousand, six hundred thirty-six".