1630806136 has 32 divisors (see below), whose sum is σ = 3085770240. Its totient is φ = 807969888.

The previous prime is 1630806127. The next prime is 1630806137. The reversal of 1630806136 is 6316080361.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630806137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402955 + ... + 406981.

It is an arithmetic number, because the mean of its divisors is an integer number (96430320).

Almost surely, 2^1630806136 is an apocalyptic number.

It is an amenable number.

1630806136 is a deficient number, since it is larger than the sum of its proper divisors (1454964104).

1630806136 is a wasteful number, since it uses less digits than its factorization.

1630806136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483 (or 4479 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 1630806136 is about 40383.2407812944. The cubic root of 1630806136 is about 1177.0659019541.

Adding to 1630806136 its reverse (6316080361), we get a palindrome (7946886497).

The spelling of 1630806136 in words is "one billion, six hundred thirty million, eight hundred six thousand, one hundred thirty-six".