213704268 has 48 divisors (see below), whose sum is σ = 510977376. Its totient is φ = 69488640.

The previous prime is 213704261. The next prime is 213704279. The reversal of 213704268 is 862407312.

It is a super-2 number, since 2×213704268² = 91339028322831648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213704261) 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, 121878 + ... + 123618.

It is an arithmetic number, because the mean of its divisors is an integer number (10645362).

Almost surely, 2^213704268 is an apocalyptic number.

It is an amenable number.

213704268 is an abundant number, since it is smaller than the sum of its proper divisors (297273108).

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

213704268 is a wasteful number, since it uses less digits than its factorization.

213704268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994 (or 1992 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 213704268 is about 14618.6274321497. The cubic root of 213704268 is about 597.8667465942.

The spelling of 213704268 in words is "two hundred thirteen million, seven hundred four thousand, two hundred sixty-eight".