213702642 has 48 divisors (see below), whose sum is σ = 473541120. Its totient is φ = 69631200.

The previous prime is 213702607. The next prime is 213702667. The reversal of 213702642 is 246207312.

213702642 is a `hidden beast` number, since 2 + 13 + 7 + 0 + 2 + 642 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209209 + ... + 210227.

It is an arithmetic number, because the mean of its divisors is an integer number (9865440).

Almost surely, 2^213702642 is an apocalyptic number.

213702642 is an abundant number, since it is smaller than the sum of its proper divisors (259838478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213702642 is a wasteful number, since it uses less digits than its factorization.

213702642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279 (or 1276 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 213702642 is about 14618.5718180676. The cubic root of 213702642 is about 597.8652302717.

Adding to 213702642 its reverse (246207312), we get a palindrome (459909954).

The spelling of 213702642 in words is "two hundred thirteen million, seven hundred two thousand, six hundred forty-two".