210104424 has 24 divisors (see below), whose sum is σ = 569033010. Its totient is φ = 70034784.

The previous prime is 210104417. The next prime is 210104437. The reversal of 210104424 is 424401012.

210104424 is a `hidden beast` number, since 210 + 10 + 442 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 158004900 + 52099524 = 12570^2 + 7218^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a junction number, because it is equal to n+sod(n) for n = 210104397 and 210104406.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1458987 + ... + 1459130.

Almost surely, 2^210104424 is an apocalyptic number.

210104424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

210104424 is an abundant number, since it is smaller than the sum of its proper divisors (358928586).

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

210104424 is a wasteful number, since it uses less digits than its factorization.

210104424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918129 (or 2918122 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 210104424 is about 14494.9792686985. The cubic root of 210104424 is about 594.4907008722.

Adding to 210104424 its reverse (424401012), we get a palindrome (634505436).

The spelling of 210104424 in words is "two hundred ten million, one hundred four thousand, four hundred twenty-four".