28241240100 has 72 divisors (see below), whose sum is σ = 81732477120. Its totient is φ = 7529047680.

The previous prime is 28241240057. The next prime is 28241240107. The reversal of 28241240100 is 104214282.

It is not an unprimeable number, because it can be changed into a prime (28241240107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1434121 + ... + 1453679.

Almost surely, 2^28241240100 is an apocalyptic number.

28241240100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28241240100 is an abundant number, since it is smaller than the sum of its proper divisors (53491237020).

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

28241240100 is a wasteful number, since it uses less digits than its factorization.

28241240100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24389 (or 24382 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 28241240100 its reverse (104214282), we get a palindrome (28345454382).

The spelling of 28241240100 in words is "twenty-eight billion, two hundred forty-one million, two hundred forty thousand, one hundred".