21402024300 has 108 divisors (see below), whose sum is σ = 67932839520. Its totient is φ = 5634944640.

The previous prime is 21402024283. The next prime is 21402024307. The reversal of 21402024300 is 342020412.

21402024300 is a `hidden beast` number, since 21 + 402 + 0 + 243 + 0 + 0 = 666.

It is a super-3 number, since 3×21402024300³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (21402024307) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 79407 + ... + 221606.

Almost surely, 2^21402024300 is an apocalyptic number.

21402024300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21402024300 is an abundant number, since it is smaller than the sum of its proper divisors (46530815220).

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

21402024300 is a wasteful number, since it uses less digits than its factorization.

21402024300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301112 (or 301102 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 21402024300 its reverse (342020412), we get a palindrome (21744044712).

The spelling of 21402024300 in words is "twenty-one billion, four hundred two million, twenty-four thousand, three hundred".