210145044 has 48 divisors (see below), whose sum is σ = 501399360. Its totient is φ = 68486400.

The previous prime is 210145009. The next prime is 210145057. The reversal of 210145044 is 440541012.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 210145044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99552 + ... + 101640.

It is an arithmetic number, because the mean of its divisors is an integer number (10445820).

Almost surely, 2^210145044 is an apocalyptic number.

It is an amenable number.

210145044 is an abundant number, since it is smaller than the sum of its proper divisors (291254316).

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

210145044 is a wasteful number, since it uses less digits than its factorization.

210145044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280 (or 2278 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 210145044 is about 14496.3803758042. The cubic root of 210145044 is about 594.5290098485.

Adding to 210145044 its reverse (440541012), we get a palindrome (650686056).

The spelling of 210145044 in words is "two hundred ten million, one hundred forty-five thousand, forty-four".