212238374 has 4 divisors (see below), whose sum is σ = 318357564. Its totient is φ = 106119186.

The previous prime is 212238361. The next prime is 212238391. The reversal of 212238374 is 473832212.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×212238374³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212238374.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53059592 + ... + 53059595.

It is an arithmetic number, because the mean of its divisors is an integer number (79589391).

Almost surely, 2^212238374 is an apocalyptic number.

212238374 is a deficient number, since it is larger than the sum of its proper divisors (106119190).

212238374 is a wasteful number, since it uses less digits than its factorization.

212238374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106119189.

The product of its digits is 16128, while the sum is 32.

The square root of 212238374 is about 14568.4032755824. The cubic root of 212238374 is about 596.4965963831.

The spelling of 212238374 in words is "two hundred twelve million, two hundred thirty-eight thousand, three hundred seventy-four".