213926742 has 48 divisors (see below), whose sum is σ = 493899120. Its totient is φ = 66686976.

The previous prime is 213926737. The next prime is 213926747. The reversal of 213926742 is 247629312.

It is an interprime number because it is at equal distance from previous prime (213926737) and next prime (213926747).

It is a junction number, because it is equal to n+sod(n) for n = 213926697 and 213926706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213926747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47734 + ... + 52022.

It is an arithmetic number, because the mean of its divisors is an integer number (10289565).

Almost surely, 2^213926742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213926742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246949560).

213926742 is an abundant number, since it is smaller than the sum of its proper divisors (279972378).

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

213926742 is a wasteful number, since it uses less digits than its factorization.

213926742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4477 (or 4474 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 213926742 is about 14626.2347171102. The cubic root of 213926742 is about 598.0741417303.

The spelling of 213926742 in words is "two hundred thirteen million, nine hundred twenty-six thousand, seven hundred forty-two".