213694330 has 32 divisors (see below), whose sum is σ = 418867200. Its totient is φ = 78184512.

The previous prime is 213694307. The next prime is 213694331. The reversal of 213694330 is 33496312.

It is a junction number, because it is equal to n+sod(n) for n = 213694292 and 213694301.

It is not an unprimeable number, because it can be changed into a prime (213694331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13882 + ... + 24901.

It is an arithmetic number, because the mean of its divisors is an integer number (13089600).

Almost surely, 2^213694330 is an apocalyptic number.

213694330 is a deficient number, since it is larger than the sum of its proper divisors (205172870).

213694330 is a wasteful number, since it uses less digits than its factorization.

213694330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38838.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 213694330 is about 14618.2875194053. The cubic root of 213694330 is about 597.8574788152.

The spelling of 213694330 in words is "two hundred thirteen million, six hundred ninety-four thousand, three hundred thirty".