210405332412 has 72 divisors (see below), whose sum is σ = 580300680960. Its totient is φ = 63749077920.

The previous prime is 210405332407. The next prime is 210405332419. The reversal of 210405332412 is 214233504012.

210405332412 is a `hidden beast` number, since 2 + 10 + 405 + 3 + 3 + 241 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210405332419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2679039 + ... + 2756457.

It is an arithmetic number, because the mean of its divisors is an integer number (8059731680).

Almost surely, 2^210405332412 is an apocalyptic number.

210405332412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210405332412 is an abundant number, since it is smaller than the sum of its proper divisors (369895348548).

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

210405332412 is a wasteful number, since it uses less digits than its factorization.

210405332412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84303 (or 84298 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 210405332412 its reverse (214233504012), we get a palindrome (424638836424).

The spelling of 210405332412 in words is "two hundred ten billion, four hundred five million, three hundred thirty-two thousand, four hundred twelve".