20242000404 has 72 divisors (see below), whose sum is σ = 52682616168. Its totient is φ = 6548428800.

The previous prime is 20242000393. The next prime is 20242000451. The reversal of 20242000404 is 40400024202.

20242000404 is a `hidden beast` number, since 20 + 242 + 0 + 0 + 0 + 404 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6786464400 + 13455536004 = 82380^2 + 115998^2 .

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

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, 515184 + ... + 553080.

Almost surely, 2^20242000404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20242000404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26341308084).

20242000404 is an abundant number, since it is smaller than the sum of its proper divisors (32440615764).

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

20242000404 is a wasteful number, since it uses less digits than its factorization.

20242000404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38345 (or 38340 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 20242000404 its reverse (40400024202), we get a palindrome (60642024606).

The spelling of 20242000404 in words is "twenty billion, two hundred forty-two million, four hundred four", and thus it is an aban number.