212295730 has 16 divisors (see below), whose sum is σ = 391019904. Its totient is φ = 82943280.

The previous prime is 212295701. The next prime is 212295737. The reversal of 212295730 is 37592212.

It is a junction number, because it is equal to n+sod(n) for n = 212295692 and 212295701.

It is not an unprimeable number, because it can be changed into a prime (212295737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246426 + ... + 247285.

It is an arithmetic number, because the mean of its divisors is an integer number (24438744).

Almost surely, 2^212295730 is an apocalyptic number.

212295730 is a deficient number, since it is larger than the sum of its proper divisors (178724174).

212295730 is a wasteful number, since it uses less digits than its factorization.

212295730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493761.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 212295730 is about 14570.3716493437. The cubic root of 212295730 is about 596.5503246144.

The spelling of 212295730 in words is "two hundred twelve million, two hundred ninety-five thousand, seven hundred thirty".