1630027840 has 56 divisors (see below), whose sum is σ = 4436010432. Its totient is φ = 558865920.

The previous prime is 1630027837. The next prime is 1630027907. The reversal of 1630027840 is 487200361.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361606 + ... + 366085.

It is an arithmetic number, because the mean of its divisors is an integer number (79214472).

Almost surely, 2^1630027840 is an apocalyptic number.

1630027840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1630027840 is an abundant number, since it is smaller than the sum of its proper divisors (2805982592).

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

1630027840 is an equidigital number, since it uses as much as digits as its factorization.

1630027840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727715 (or 727705 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 1630027840 is about 40373.6032575741. The cubic root of 1630027840 is about 1176.8786220893.

The spelling of 1630027840 in words is "one billion, six hundred thirty million, twenty-seven thousand, eight hundred forty".