210230442 has 24 divisors (see below), whose sum is σ = 475304544. Its totient is φ = 67029864.

The previous prime is 210230429. The next prime is 210230477. The reversal of 210230442 is 244032012.

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

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, 253488 + ... + 254315.

It is an arithmetic number, because the mean of its divisors is an integer number (19804356).

Almost surely, 2^210230442 is an apocalyptic number.

210230442 is an abundant number, since it is smaller than the sum of its proper divisors (265074102).

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

210230442 is a wasteful number, since it uses less digits than its factorization.

210230442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507834 (or 507831 counting only the distinct ones).

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

The square root of 210230442 is about 14499.3255705222. The cubic root of 210230442 is about 594.6095331409.

Adding to 210230442 its reverse (244032012), we get a palindrome (454262454).

The spelling of 210230442 in words is "two hundred ten million, two hundred thirty thousand, four hundred forty-two".