212774472 has 64 divisors (see below), whose sum is σ = 616752000. Its totient is φ = 67839552.

The previous prime is 212774467. The next prime is 212774477. The reversal of 212774472 is 274477212.

It is a happy number.

212774472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212774467) and next prime (212774477).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (212774477) 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, 16447 + ... + 26382.

It is an arithmetic number, because the mean of its divisors is an integer number (9636750).

Almost surely, 2^212774472 is an apocalyptic number.

It is an amenable number.

212774472 is an abundant number, since it is smaller than the sum of its proper divisors (403977528).

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

212774472 is a wasteful number, since it uses less digits than its factorization.

212774472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42867 (or 42857 counting only the distinct ones).

The product of its digits is 43904, while the sum is 36.

The square root of 212774472 is about 14586.7910110483. The cubic root of 212774472 is about 596.9984091268.

The spelling of 212774472 in words is "two hundred twelve million, seven hundred seventy-four thousand, four hundred seventy-two".