1630053918 has 24 divisors (see below), whose sum is σ = 3532625928. Its totient is φ = 543221712.

The previous prime is 1630053899. The next prime is 1630053923. The reversal of 1630053918 is 8193500361.

It is a happy number.

1630053918 is a `hidden beast` number, since 1 + 630 + 0 + 5 + 3 + 9 + 18 = 666.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 94521 + ... + 110427.

It is an arithmetic number, because the mean of its divisors is an integer number (147192747).

Almost surely, 2^1630053918 is an apocalyptic number.

1630053918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1630053918 is an abundant number, since it is smaller than the sum of its proper divisors (1902572010).

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

1630053918 is a wasteful number, since it uses less digits than its factorization.

1630053918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21608 (or 21605 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1630053918 is about 40373.9262148233. The cubic root of 1630053918 is about 1176.8848981533.

The spelling of 1630053918 in words is "one billion, six hundred thirty million, fifty-three thousand, nine hundred eighteen".