20240402100 has 72 divisors (see below), whose sum is σ = 60581643360. Its totient is φ = 5211319680.

The previous prime is 20240402093. The next prime is 20240402123. The reversal of 20240402100 is 120404202.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20240402100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1154542 + ... + 1171941.

Almost surely, 2^20240402100 is an apocalyptic number.

20240402100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20240402100 is an abundant number, since it is smaller than the sum of its proper divisors (40341241260).

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

20240402100 is a wasteful number, since it uses less digits than its factorization.

20240402100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326529 (or 2326522 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20240402100 its reverse (120404202), we get a palindrome (20360806302).

The spelling of 20240402100 in words is "twenty billion, two hundred forty million, four hundred two thousand, one hundred".