210244342 has 16 divisors (see below), whose sum is σ = 393184512. Its totient is φ = 81913320.

The previous prime is 210244337. The next prime is 210244343. The reversal of 210244342 is 243442012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210244343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 682458 + ... + 682765.

It is an arithmetic number, because the mean of its divisors is an integer number (24574032).

Almost surely, 2^210244342 is an apocalyptic number.

210244342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210244342 is a deficient number, since it is larger than the sum of its proper divisors (182940170).

210244342 is a wasteful number, since it uses less digits than its factorization.

210244342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365243.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 210244342 is about 14499.8048952391. The cubic root of 210244342 is about 594.6226376344.

Adding to 210244342 its reverse (243442012), we get a palindrome (453686354).

The spelling of 210244342 in words is "two hundred ten million, two hundred forty-four thousand, three hundred forty-two".