1630673634 has 8 divisors (see below), whose sum is σ = 3261347280. Its totient is φ = 543557876.

The previous prime is 1630673579. The next prime is 1630673699. The reversal of 1630673634 is 4363760361.

It is a sphenic number, since it is the product of 3 distinct primes.

1630673634 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1630673592 and 1630673601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135889464 + ... + 135889475.

It is an arithmetic number, because the mean of its divisors is an integer number (407668410).

Almost surely, 2^1630673634 is an apocalyptic number.

1630673634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1630673634 is a wasteful number, since it uses less digits than its factorization.

1630673634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271778944.

The product of its (nonzero) digits is 163296, while the sum is 39.

The square root of 1630673634 is about 40381.6001911762. The cubic root of 1630673634 is about 1177.0340224627.

The spelling of 1630673634 in words is "one billion, six hundred thirty million, six hundred seventy-three thousand, six hundred thirty-four".