1630032605 has 16 divisors (see below), whose sum is σ = 2012634624. Its totient is φ = 1266632640.

The previous prime is 1630032559. The next prime is 1630032611. The reversal of 1630032605 is 5062300361.

It is a de Polignac number, because none of the positive numbers 2^k-1630032605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17972 + ... + 59858.

It is an arithmetic number, because the mean of its divisors is an integer number (125789664).

Almost surely, 2^1630032605 is an apocalyptic number.

It is an amenable number.

1630032605 is a deficient number, since it is larger than the sum of its proper divisors (382602019).

1630032605 is a wasteful number, since it uses less digits than its factorization.

1630032605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42116.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 1630032605 is about 40373.6622688604. The cubic root of 1630032605 is about 1176.8797688634.

Adding to 1630032605 its reverse (5062300361), we get a palindrome (6692332966).

The spelling of 1630032605 in words is "one billion, six hundred thirty million, thirty-two thousand, six hundred five".