1626000000 has 224 divisors, whose sum is σ = 5418680640. Its totient is φ = 432000000.

The previous prime is 1625999953. The next prime is 1626000001. The reversal of 1626000000 is 6261.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1626000001) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 5999865 + ... + 6000135.

Almost surely, 2^1626000000 is an apocalyptic number.

1626000000 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 1626000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2709340320).

1626000000 is an abundant number, since it is smaller than the sum of its proper divisors (3792680640).

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

1626000000 is an frugal number, since it uses more digits than its factorization.

1626000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1626000000 is about 40323.6903073119. The cubic root of 1626000000 is about 1175.9084569401.

Adding to 1626000000 its reverse (6261), we get a palindrome (1626006261).

The spelling of 1626000000 in words is "one billion, six hundred twenty-six million", and thus it is an aban number.