1630442196 has 60 divisors (see below), whose sum is σ = 4300113972. Its totient is φ = 538659072.

The previous prime is 1630442189. The next prime is 1630442201. The reversal of 1630442196 is 6912440361.

1630442196 is a `hidden beast` number, since 1 + 630 + 4 + 4 + 2 + 19 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 373030596 + 1257411600 = 19314^2 + 35460^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1630442196.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14346 + ... + 58878.

Almost surely, 2^1630442196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1630442196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2150056986).

1630442196 is an abundant number, since it is smaller than the sum of its proper divisors (2669671776).

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

1630442196 is a wasteful number, since it uses less digits than its factorization.

1630442196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44662 (or 44651 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1630442196 is about 40378.7344526794. The cubic root of 1630442196 is about 1176.9783351927.

The spelling of 1630442196 in words is "one billion, six hundred thirty million, four hundred forty-two thousand, one hundred ninety-six".