1630452100 has 18 divisors (see below), whose sum is σ = 3538081274. Its totient is φ = 652180800.

The previous prime is 1630452059. The next prime is 1630452139. The reversal of 1630452100 is 12540361.

It can be written as a sum of positive squares in 3 ways, for example, as 3297856 + 1627154244 = 1816^2 + 40338^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8152161 + ... + 8152360.

Almost surely, 2^1630452100 is an apocalyptic number.

1630452100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1630452100 is an abundant number, since it is smaller than the sum of its proper divisors (1907629174).

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

1630452100 is a wasteful number, since it uses less digits than its factorization.

1630452100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16304535 (or 16304528 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1630452100 is about 40378.8570913046. The cubic root of 1630452100 is about 1176.9807183437.

Adding to 1630452100 its reverse (12540361), we get a palindrome (1642992461).

The spelling of 1630452100 in words is "one billion, six hundred thirty million, four hundred fifty-two thousand, one hundred".