214028340 has 96 divisors (see below), whose sum is σ = 645636096. Its totient is φ = 52821120.

The previous prime is 214028299. The next prime is 214028377. The reversal of 214028340 is 43820412.

It is a self number, because there is not a number n which added to its sum of digits gives 214028340.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 40279 + ... + 45281.

It is an arithmetic number, because the mean of its divisors is an integer number (6725376).

Almost surely, 2^214028340 is an apocalyptic number.

214028340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 214028340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322818048).

214028340 is an abundant number, since it is smaller than the sum of its proper divisors (431607756).

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

214028340 is a wasteful number, since it uses less digits than its factorization.

214028340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5069 (or 5067 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 214028340 is about 14629.7074475192. The cubic root of 214028340 is about 598.1688057875.

Adding to 214028340 its reverse (43820412), we get a palindrome (257848752).

The spelling of 214028340 in words is "two hundred fourteen million, twenty-eight thousand, three hundred forty".