212895742 has 8 divisors (see below), whose sum is σ = 319500000. Its totient is φ = 106395744.

The previous prime is 212895737. The next prime is 212895763. The reversal of 212895742 is 247598212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 212895695 and 212895704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20742 + ... + 29257.

It is an arithmetic number, because the mean of its divisors is an integer number (39937500).

Almost surely, 2^212895742 is an apocalyptic number.

212895742 is a deficient number, since it is larger than the sum of its proper divisors (106604258).

212895742 is a wasteful number, since it uses less digits than its factorization.

212895742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52130.

The product of its digits is 80640, while the sum is 40.

The square root of 212895742 is about 14590.9472619155. The cubic root of 212895742 is about 597.1118065760. Note that the first 3 decimals are identical.

The spelling of 212895742 in words is "two hundred twelve million, eight hundred ninety-five thousand, seven hundred forty-two".