210034434140 has 48 divisors (see below), whose sum is σ = 441839990592. Its totient is φ = 83867675136.

The previous prime is 210034434139. The next prime is 210034434143. The reversal of 210034434140 is 41434430012.

It is a super-2 number, since 2×210034434140² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210034434143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55754537 + ... + 55758303.

It is an arithmetic number, because the mean of its divisors is an integer number (9204999804).

Almost surely, 2^210034434140 is an apocalyptic number.

210034434140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210034434140 is an abundant number, since it is smaller than the sum of its proper divisors (231805556452).

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

210034434140 is a wasteful number, since it uses less digits than its factorization.

210034434140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7886 (or 7884 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 210034434140 its reverse (41434430012), we get a palindrome (251468864152).

The spelling of 210034434140 in words is "two hundred ten billion, thirty-four million, four hundred thirty-four thousand, one hundred forty".