212442427460 has 24 divisors (see below), whose sum is σ = 472371986520. Its totient is φ = 79978325504.

The previous prime is 212442427441. The next prime is 212442427481. The reversal of 212442427460 is 64724244212.

It can be written as a sum of positive squares in 4 ways, for example, as 111347681344 + 101094746116 = 333688^2 + 317954^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312414995 + ... + 312415674.

It is an arithmetic number, because the mean of its divisors is an integer number (19682166105).

Almost surely, 2^212442427460 is an apocalyptic number.

212442427460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212442427460 is an abundant number, since it is smaller than the sum of its proper divisors (259929559060).

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

212442427460 is a wasteful number, since it uses less digits than its factorization.

212442427460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624830695 (or 624830693 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 38.

The spelling of 212442427460 in words is "two hundred twelve billion, four hundred forty-two million, four hundred twenty-seven thousand, four hundred sixty".