210042324 has 36 divisors (see below), whose sum is σ = 532779156. Its totient is φ = 69771648.

The previous prime is 210042281. The next prime is 210042341. The reversal of 210042324 is 423240012.

It can be written as a sum of positive squares in 2 ways, for example, as 96236100 + 113806224 = 9810^2 + 10668^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 = 210042297 and 210042306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 592 + ... + 20504.

It is an arithmetic number, because the mean of its divisors is an integer number (14799421).

Almost surely, 2^210042324 is an apocalyptic number.

It is an amenable number.

210042324 is an abundant number, since it is smaller than the sum of its proper divisors (322736832).

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

210042324 is a wasteful number, since it uses less digits than its factorization.

210042324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20216 (or 20211 counting only the distinct ones).

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

The square root of 210042324 is about 14492.8369893544. The cubic root of 210042324 is about 594.4321244277.

Adding to 210042324 its reverse (423240012), we get a palindrome (633282336).

The spelling of 210042324 in words is "two hundred ten million, forty-two thousand, three hundred twenty-four".