210201442 has 24 divisors (see below), whose sum is σ = 347967900. Its totient is φ = 95161440.

The previous prime is 210201419. The next prime is 210201443. The reversal of 210201442 is 244102012.

210201442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 183358681 + 26842761 = 13541^2 + 5181^2 .

It is not an unprimeable number, because it can be changed into a prime (210201443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63484 + ... + 66712.

Almost surely, 2^210201442 is an apocalyptic number.

210201442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210201442 is a deficient number, since it is larger than the sum of its proper divisors (137766458).

210201442 is a wasteful number, since it uses less digits than its factorization.

210201442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3522 (or 3511 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 210201442 is about 14498.3254895177. The cubic root of 210201442 is about 594.5821909710.

Adding to 210201442 its reverse (244102012), we get a palindrome (454303454).

The spelling of 210201442 in words is "two hundred ten million, two hundred one thousand, four hundred forty-two".