210003442 has 32 divisors (see below), whose sum is σ = 359121600. Its totient is φ = 91224000.

The previous prime is 210003439. The next prime is 210003461. The reversal of 210003442 is 244300012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62809 + ... + 66067.

It is an arithmetic number, because the mean of its divisors is an integer number (11222550).

Almost surely, 2^210003442 is an apocalyptic number.

210003442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210003442 is a deficient number, since it is larger than the sum of its proper divisors (149118158).

210003442 is a wasteful number, since it uses less digits than its factorization.

210003442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402.

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

The square root of 210003442 is about 14491.4955059856. The cubic root of 210003442 is about 594.3954427156.

Adding to 210003442 its reverse (244300012), we get a palindrome (454303454).

It can be divided in two parts, 21000 and 3442, that added together give a palindrome (24442).

The spelling of 210003442 in words is "two hundred ten million, three thousand, four hundred forty-two".