213652730 has 32 divisors (see below), whose sum is σ = 389430720. Its totient is φ = 84389760.

The previous prime is 213652729. The next prime is 213652757. The reversal of 213652730 is 37256312.

It is a junction number, because it is equal to n+sod(n) for n = 213652693 and 213652702.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390317 + ... + 390863.

It is an arithmetic number, because the mean of its divisors is an integer number (12169710).

Almost surely, 2^213652730 is an apocalyptic number.

213652730 is a deficient number, since it is larger than the sum of its proper divisors (175777990).

213652730 is a wasteful number, since it uses less digits than its factorization.

213652730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 213652730 is about 14616.8645748669. The cubic root of 213652730 is about 597.8186812093.

The spelling of 213652730 in words is "two hundred thirteen million, six hundred fifty-two thousand, seven hundred thirty".