19041240100 has 27 divisors (see below), whose sum is σ = 41322485617. Its totient is φ = 7615944080.

The previous prime is 19041240067. The next prime is 19041240137. The reversal of 19041240100 is 104214091.

The square root of 19041240100 is 137990.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6854846436 + 12186393664 = 82794^2 + 110392^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1373001 + ... + 1386799.

Almost surely, 2^19041240100 is an apocalyptic number.

19041240100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19041240100 is the 137990-th square number.

It is an amenable number.

19041240100 is an abundant number, since it is smaller than the sum of its proper divisors (22281245517).

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

19041240100 is an frugal number, since it uses more digits than its factorization.

19041240100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27612 (or 13806 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 19041240100 its reverse (104214091), we get a palindrome (19145454191).

The spelling of 19041240100 in words is "nineteen billion, forty-one million, two hundred forty thousand, one hundred".