1349800100 has 72 divisors (see below), whose sum is σ = 3269769888. Its totient is φ = 479404800.

The previous prime is 1349800093. The next prime is 1349800129. The reversal of 1349800100 is 10089431.

It is a self number, because there is not a number n which added to its sum of digits gives 1349800100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33032 + ... + 61568.

Almost surely, 2^1349800100 is an apocalyptic number.

1349800100 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 1349800100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1634884944).

1349800100 is an abundant number, since it is smaller than the sum of its proper divisors (1919969788).

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

1349800100 is a wasteful number, since it uses less digits than its factorization.

1349800100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28605 (or 28598 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1349800100 is about 36739.6257465968. The cubic root of 1349800100 is about 1105.1548959441.

Adding to 1349800100 its reverse (10089431), we get a palindrome (1359889531).

The spelling of 1349800100 in words is "one billion, three hundred forty-nine million, eight hundred thousand, one hundred".