213461892 has 144 divisors (see below), whose sum is σ = 646988160. Its totient is φ = 60279552.

The previous prime is 213461879. The next prime is 213461923. The reversal of 213461892 is 298164312.

213461892 is a `hidden beast` number, since 2 + 1 + 34 + 618 + 9 + 2 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 932034 + ... + 932262.

Almost surely, 2^213461892 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213461892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323494080).

213461892 is an abundant number, since it is smaller than the sum of its proper divisors (433526268).

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

213461892 is a wasteful number, since it uses less digits than its factorization.

213461892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 378 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 213461892 is about 14610.3351090932. The cubic root of 213461892 is about 597.6406344847.

The spelling of 213461892 in words is "two hundred thirteen million, four hundred sixty-one thousand, eight hundred ninety-two".