210030442 has 16 divisors (see below), whose sum is σ = 325648800. Its totient is φ = 101539440.

The previous prime is 210030439. The next prime is 210030473. The reversal of 210030442 is 244030012.

210030442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×210030442² = 88225573133430728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7392 + ... + 21787.

It is an arithmetic number, because the mean of its divisors is an integer number (20353050).

Almost surely, 2^210030442 is an apocalyptic number.

210030442 is a deficient number, since it is larger than the sum of its proper divisors (115618358).

210030442 is a wasteful number, since it uses less digits than its factorization.

210030442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29301.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 210030442 is about 14492.4270569149. The cubic root of 210030442 is about 594.4209152969.

Adding to 210030442 its reverse (244030012), we get a palindrome (454060454).

The spelling of 210030442 in words is "two hundred ten million, thirty thousand, four hundred forty-two".