1630451130 has 128 divisors (see below), whose sum is σ = 5165752320. Its totient is φ = 318858240.

The previous prime is 1630451093. The next prime is 1630451149. The reversal of 1630451130 is 311540361.

1630451130 = 15² + 16² + ... + 1697².

It is a self number, because there is not a number n which added to its sum of digits gives 1630451130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18511 + ... + 60029.

It is an arithmetic number, because the mean of its divisors is an integer number (40357440).

Almost surely, 2^1630451130 is an apocalyptic number.

1630451130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1630451130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2582876160).

1630451130 is an abundant number, since it is smaller than the sum of its proper divisors (3535301190).

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

1630451130 is a wasteful number, since it uses less digits than its factorization.

1630451130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41564.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1630451130 is about 40378.8450800664. The cubic root of 1630451130 is about 1176.9804849378.

Adding to 1630451130 its reverse (311540361), we get a palindrome (1941991491).

The spelling of 1630451130 in words is "one billion, six hundred thirty million, four hundred fifty-one thousand, one hundred thirty".