1630442205 has 96 divisors (see below), whose sum is σ = 3538080000. Its totient is φ = 677246976.

The previous prime is 1630442201. The next prime is 1630442207. The reversal of 1630442205 is 5022440361.

1630442205 is a `hidden beast` number, since 1 + 630 + 4 + 4 + 2 + 20 + 5 = 666.

It is not a de Polignac number, because 1630442205 - 2² = 1630442201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630442201) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 150046 + ... + 160544.

It is an arithmetic number, because the mean of its divisors is an integer number (36855000).

Almost surely, 2^1630442205 is an apocalyptic number.

1630442205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1630442205 is an abundant number, since it is smaller than the sum of its proper divisors (1907637795).

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

1630442205 is a wasteful number, since it uses less digits than its factorization.

1630442205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10563 (or 10560 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1630442205 is about 40378.7345641242. The cubic root of 1630442205 is about 1176.9783373584.

Adding to 1630442205 its reverse (5022440361), we get a palindrome (6652882566).

The spelling of 1630442205 in words is "one billion, six hundred thirty million, four hundred forty-two thousand, two hundred five".