210045140452 has 48 divisors (see below), whose sum is σ = 434234493952. Its totient is φ = 86996384640.

The previous prime is 210045140423. The next prime is 210045140471. The reversal of 210045140452 is 254041540012.

It is a super-2 number, since 2×210045140452² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 210045140452.

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, 471178 + ... + 801310.

Almost surely, 2^210045140452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210045140452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217117246976).

210045140452 is an abundant number, since it is smaller than the sum of its proper divisors (224189353500).

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

210045140452 is a wasteful number, since it uses less digits than its factorization.

210045140452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330908 (or 330906 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 210045140452 its reverse (254041540012), we get a palindrome (464086680464).

The spelling of 210045140452 in words is "two hundred ten billion, forty-five million, one hundred forty thousand, four hundred fifty-two".