214705730 has 16 divisors (see below), whose sum is σ = 386795520. Its totient is φ = 85810032.

The previous prime is 214705723. The next prime is 214705741. The reversal of 214705730 is 37507412.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 214705693 and 214705702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4397 + ... + 21183.

It is an arithmetic number, because the mean of its divisors is an integer number (24174720).

Almost surely, 2^214705730 is an apocalyptic number.

214705730 is a deficient number, since it is larger than the sum of its proper divisors (172089790).

214705730 is a wasteful number, since it uses less digits than its factorization.

214705730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18073.

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

The square root of 214705730 is about 14652.8403389923. The cubic root of 214705730 is about 598.7992002550.

The spelling of 214705730 in words is "two hundred fourteen million, seven hundred five thousand, seven hundred thirty".