210146442 has 32 divisors (see below), whose sum is σ = 459290304. Its totient is φ = 63571200.

The previous prime is 210146429. The next prime is 210146459. The reversal of 210146442 is 244641012.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41218 + ... + 46034.

It is an arithmetic number, because the mean of its divisors is an integer number (14352822).

Almost surely, 2^210146442 is an apocalyptic number.

210146442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210146442 is an abundant number, since it is smaller than the sum of its proper divisors (249143862).

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

210146442 is a wasteful number, since it uses less digits than its factorization.

210146442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5494.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 210146442 is about 14496.4285946574. The cubic root of 210146442 is about 594.5303282232.

Adding to 210146442 its reverse (244641012), we get a palindrome (454787454).

The spelling of 210146442 in words is "two hundred ten million, one hundred forty-six thousand, four hundred forty-two".