1047090100 has 144 divisors (see below), whose sum is σ = 2721381376. Its totient is φ = 342144000.

The previous prime is 1047090089. The next prime is 1047090127. The reversal of 1047090100 is 10907401.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 1583770 + ... + 1584430.

Almost surely, 2^1047090100 is an apocalyptic number.

1047090100 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 1047090100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1360690688).

1047090100 is an abundant number, since it is smaller than the sum of its proper divisors (1674291276).

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

1047090100 is a wasteful number, since it uses less digits than its factorization.

1047090100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 1047090100 is about 32358.7716083290. The cubic root of 1047090100 is about 1015.4565637517.

Adding to 1047090100 its reverse (10907401), we get a palindrome (1057997501).

The spelling of 1047090100 in words is "one billion, forty-seven million, ninety thousand, one hundred".