1606312420 has 48 divisors (see below), whose sum is σ = 3451408128. Its totient is φ = 627690240.

The previous prime is 1606312403. The next prime is 1606312423. The reversal of 1606312420 is 242136061.

It is not an unprimeable number, because it can be changed into a prime (1606312423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648304 + ... + 650776.

It is an arithmetic number, because the mean of its divisors is an integer number (71904336).

Almost surely, 2^1606312420 is an apocalyptic number.

1606312420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1606312420 is an abundant number, since it is smaller than the sum of its proper divisors (1845095708).

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

1606312420 is a wasteful number, since it uses less digits than its factorization.

1606312420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220 (or 3218 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1606312420 is about 40078.8275776625. The cubic root of 1606312420 is about 1171.1432125950.

Adding to 1606312420 its reverse (242136061), we get a palindrome (1848448481).

The spelling of 1606312420 in words is "one billion, six hundred six million, three hundred twelve thousand, four hundred twenty".