1485822840 has 128 divisors (see below), whose sum is σ = 4537209600. Its totient is φ = 389191680.

The previous prime is 1485822799. The next prime is 1485822841. The reversal of 1485822840 is 482285841.

It is a junction number, because it is equal to n+sod(n) for n = 1485822792 and 1485822801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1485822841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2400051 + ... + 2400669.

It is an arithmetic number, because the mean of its divisors is an integer number (35446950).

Almost surely, 2^1485822840 is an apocalyptic number.

1485822840 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 1485822840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2268604800).

1485822840 is an abundant number, since it is smaller than the sum of its proper divisors (3051386760).

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

1485822840 is a wasteful number, since it uses less digits than its factorization.

1485822840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957 (or 953 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 42.

The square root of 1485822840 is about 38546.3725919833. The cubic root of 1485822840 is about 1141.0964213000.

The spelling of 1485822840 in words is "one billion, four hundred eighty-five million, eight hundred twenty-two thousand, eight hundred forty".