1630591122 has 16 divisors (see below), whose sum is σ = 3314644992. Its totient is φ = 534619920.

The previous prime is 1630591111. The next prime is 1630591231. The reversal of 1630591122 is 2211950361.

It is a self number, because there is not a number n which added to its sum of digits gives 1630591122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2227218 + ... + 2227949.

It is an arithmetic number, because the mean of its divisors is an integer number (207165312).

Almost surely, 2^1630591122 is an apocalyptic number.

1630591122 is an abundant number, since it is smaller than the sum of its proper divisors (1684053870).

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

1630591122 is a wasteful number, since it uses less digits than its factorization.

1630591122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4455233.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1630591122 is about 40380.5785248305. The cubic root of 1630591122 is about 1177.0141695080.

The spelling of 1630591122 in words is "one billion, six hundred thirty million, five hundred ninety-one thousand, one hundred twenty-two".