212410340440 has 64 divisors (see below), whose sum is σ = 479960458560. Its totient is φ = 84602273280.

The previous prime is 212410340411. The next prime is 212410340489. The reversal of 212410340440 is 44043014212.

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, 36995970 + ... + 37001710.

It is an arithmetic number, because the mean of its divisors is an integer number (7499382165).

Almost surely, 2^212410340440 is an apocalyptic number.

212410340440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212410340440 is an abundant number, since it is smaller than the sum of its proper divisors (267550118120).

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

212410340440 is a wasteful number, since it uses less digits than its factorization.

212410340440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9532 (or 9528 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 212410340440 its reverse (44043014212), we get a palindrome (256453354652).

The spelling of 212410340440 in words is "two hundred twelve billion, four hundred ten million, three hundred forty thousand, four hundred forty".