1630426600 has 144 divisors (see below), whose sum is σ = 4219065900. Its totient is φ = 585446400.

The previous prime is 1630426583. The next prime is 1630426607. The reversal of 1630426600 is 66240361.

It can be written as a sum of positive squares in 6 ways, for example, as 426752964 + 1203673636 = 20658^2 + 34694^2 .

It is not an unprimeable number, because it can be changed into a prime (1630426607) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2153422 + ... + 2154178.

Almost surely, 2^1630426600 is an apocalyptic number.

1630426600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1630426600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2109532950).

1630426600 is an abundant number, since it is smaller than the sum of its proper divisors (2588639300).

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

1630426600 is a wasteful number, since it uses less digits than its factorization.

1630426600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1630426600 is about 40378.5413307613. The cubic root of 1630426600 is about 1176.9745823841.

Adding to 1630426600 its reverse (66240361), we get a palindrome (1696666961).

The spelling of 1630426600 in words is "one billion, six hundred thirty million, four hundred twenty-six thousand, six hundred".