213438892 has 12 divisors (see below), whose sum is σ = 377009640. Its totient is φ = 105721856.

The previous prime is 213438877. The next prime is 213438917. The reversal of 213438892 is 298834312.

213438892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248917 + ... + 249772.

It is an arithmetic number, because the mean of its divisors is an integer number (31417470).

Almost surely, 2^213438892 is an apocalyptic number.

It is an amenable number.

213438892 is a deficient number, since it is larger than the sum of its proper divisors (163570748).

213438892 is a wasteful number, since it uses less digits than its factorization.

213438892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498800 (or 498798 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 213438892 is about 14609.5479738423. The cubic root of 213438892 is about 597.6191689385.

The spelling of 213438892 in words is "two hundred thirteen million, four hundred thirty-eight thousand, eight hundred ninety-two".