213451422 has 16 divisors (see below), whose sum is σ = 452014992. Its totient is φ = 66965120.

The previous prime is 213451421. The next prime is 213451471. The reversal of 213451422 is 224154312.

It is a junction number, because it is equal to n+sod(n) for n = 213451392 and 213451401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213451421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1046229 + ... + 1046432.

It is an arithmetic number, because the mean of its divisors is an integer number (28250937).

Almost surely, 2^213451422 is an apocalyptic number.

213451422 is an abundant number, since it is smaller than the sum of its proper divisors (238563570).

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

213451422 is a wasteful number, since it uses less digits than its factorization.

213451422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092683.

The product of its digits is 1920, while the sum is 24.

The square root of 213451422 is about 14609.9767966962. The cubic root of 213451422 is about 597.6308631860.

The spelling of 213451422 in words is "two hundred thirteen million, four hundred fifty-one thousand, four hundred twenty-two".