1485906840 has 192 divisors, whose sum is σ = 5320823040. Its totient is φ = 356624640.

The previous prime is 1485906809. The next prime is 1485906841. The reversal of 1485906840 is 486095841.

1485906840 is a `hidden beast` number, since 1 + 485 + 90 + 6 + 84 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1485906841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 406059 + ... + 409701.

It is an arithmetic number, because the mean of its divisors is an integer number (27712620).

Almost surely, 2^1485906840 is an apocalyptic number.

1485906840 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 1485906840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2660411520).

1485906840 is an abundant number, since it is smaller than the sum of its proper divisors (3834916200).

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

1485906840 is a wasteful number, since it uses less digits than its factorization.

1485906840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3774 (or 3767 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 1485906840 is about 38547.4621732741. The cubic root of 1485906840 is about 1141.1179246023.

The spelling of 1485906840 in words is "one billion, four hundred eighty-five million, nine hundred six thousand, eight hundred forty".