1485105820 has 24 divisors (see below), whose sum is σ = 3402242928. Its totient is φ = 540038400.

The previous prime is 1485105799. The next prime is 1485105821. The reversal of 1485105820 is 285015841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1485105821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3375021 + ... + 3375460.

It is an arithmetic number, because the mean of its divisors is an integer number (141760122).

Almost surely, 2^1485105820 is an apocalyptic number.

1485105820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1485105820 is an abundant number, since it is smaller than the sum of its proper divisors (1917137108).

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

1485105820 is a wasteful number, since it uses less digits than its factorization.

1485105820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6750501 (or 6750499 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 1485105820 is about 38537.0707241741. The cubic root of 1485105820 is about 1140.9128371423.

The spelling of 1485105820 in words is "one billion, four hundred eighty-five million, one hundred five thousand, eight hundred twenty".