212752730 has 16 divisors (see below), whose sum is σ = 383249664. Its totient is φ = 85035600.

The previous prime is 212752723. The next prime is 212752769. The reversal of 212752730 is 37257212.

It is a junction number, because it is equal to n+sod(n) for n = 212752693 and 212752702.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6755 + ... + 21705.

It is an arithmetic number, because the mean of its divisors is an integer number (23953104).

Almost surely, 2^212752730 is an apocalyptic number.

212752730 is a deficient number, since it is larger than the sum of its proper divisors (170496934).

212752730 is a wasteful number, since it uses less digits than its factorization.

212752730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16381.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 212752730 is about 14586.0457287093. The cubic root of 212752730 is about 596.9780740095.

The spelling of 212752730 in words is "two hundred twelve million, seven hundred fifty-two thousand, seven hundred thirty".