212831949400 has 96 divisors (see below), whose sum is σ = 568486471680. Its totient is φ = 72588816000.

The previous prime is 212831949397. The next prime is 212831949439. The reversal of 212831949400 is 4949138212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130566 + ... + 665365.

It is an arithmetic number, because the mean of its divisors is an integer number (5921734080).

Almost surely, 2^212831949400 is an apocalyptic number.

212831949400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212831949400 is an abundant number, since it is smaller than the sum of its proper divisors (355654522280).

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

212831949400 is a wasteful number, since it uses less digits than its factorization.

212831949400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796145 (or 796136 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 212831949400 in words is "two hundred twelve billion, eight hundred thirty-one million, nine hundred forty-nine thousand, four hundred".