20624000406 has 8 divisors (see below), whose sum is σ = 41248000824. Its totient is φ = 6874666800.

The previous prime is 20624000401. The next prime is 20624000437. The reversal of 20624000406 is 60400042602.

It is a sphenic number, since it is the product of 3 distinct primes.

20624000406 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20624000401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1718666695 + ... + 1718666706.

It is an arithmetic number, because the mean of its divisors is an integer number (5156000103).

Almost surely, 2^20624000406 is an apocalyptic number.

20624000406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20624000406 is a wasteful number, since it uses less digits than its factorization.

20624000406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3437333406.

The product of its (nonzero) digits is 2304, while the sum is 24.

It can be divided in two parts, 20 and 624000406, that added together give a palindrome (624000426).

The spelling of 20624000406 in words is "twenty billion, six hundred twenty-four million, four hundred six", and thus it is an aban number.