1485451920 has 320 divisors, whose sum is σ = 5142528000. Its totient is φ = 353138688.

The previous prime is 1485451897. The next prime is 1485451921. The reversal of 1485451920 is 291545841.

It is not an unprimeable number, because it can be changed into a prime (1485451921) 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 63 ways as a sum of consecutive naturals, for example, 6215161 + ... + 6215399.

It is an arithmetic number, because the mean of its divisors is an integer number (16070400).

Almost surely, 2^1485451920 is an apocalyptic number.

1485451920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1485451920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2571264000).

1485451920 is an abundant number, since it is smaller than the sum of its proper divisors (3657076080).

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

1485451920 is a wasteful number, since it uses less digits than its factorization.

1485451920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 1485451920 is about 38541.5609439991. The cubic root of 1485451920 is about 1141.0014591689.

The spelling of 1485451920 in words is "one billion, four hundred eighty-five million, four hundred fifty-one thousand, nine hundred twenty".