212877342 has 32 divisors (see below), whose sum is σ = 489376800. Its totient is φ = 68511744.

The previous prime is 212877337. The next prime is 212877359. The reversal of 212877342 is 243778212.

It is a junction number, because it is equal to n+sod(n) for n = 212877297 and 212877306.

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, 66403 + ... + 69534.

It is an arithmetic number, because the mean of its divisors is an integer number (15293025).

Almost surely, 2^212877342 is an apocalyptic number.

212877342 is an abundant number, since it is smaller than the sum of its proper divisors (276499458).

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

212877342 is a wasteful number, since it uses less digits than its factorization.

212877342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135977 (or 135971 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 212877342 is about 14590.3167203457. The cubic root of 212877342 is about 597.0946038305.

The spelling of 212877342 in words is "two hundred twelve million, eight hundred seventy-seven thousand, three hundred forty-two".