212957038 has 16 divisors (see below), whose sum is σ = 372520800. Its totient is φ = 91267008.

The previous prime is 212957033. The next prime is 212957051. The reversal of 212957038 is 830759212.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 212956988 and 212957006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212957033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154531 + ... + 155902.

It is an arithmetic number, because the mean of its divisors is an integer number (23282550).

Almost surely, 2^212957038 is an apocalyptic number.

212957038 is a deficient number, since it is larger than the sum of its proper divisors (159563762).

212957038 is an equidigital number, since it uses as much as digits as its factorization.

212957038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310456 (or 310442 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 212957038 is about 14593.0475912333. The cubic root of 212957038 is about 597.1691070069.

The spelling of 212957038 in words is "two hundred twelve million, nine hundred fifty-seven thousand, thirty-eight".