212057342 has 8 divisors (see below), whose sum is σ = 363526896. Its totient is φ = 90881712.

The previous prime is 212057341. The next prime is 212057357. The reversal of 212057342 is 243750212.

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

It is a super-2 number, since 2×212057342² = 89936632592209928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212057341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7573463 + ... + 7573490.

It is an arithmetic number, because the mean of its divisors is an integer number (45440862).

Almost surely, 2^212057342 is an apocalyptic number.

212057342 is a deficient number, since it is larger than the sum of its proper divisors (151469554).

212057342 is a wasteful number, since it uses less digits than its factorization.

212057342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15146962.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 212057342 is about 14562.1887777902. The cubic root of 212057342 is about 596.3269511444.

The spelling of 212057342 in words is "two hundred twelve million, fifty-seven thousand, three hundred forty-two".