214145340 has 24 divisors (see below), whose sum is σ = 599607120. Its totient is φ = 57105408.

The previous prime is 214145329. The next prime is 214145359. The reversal of 214145340 is 43541412.

214145340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 214145340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1784485 + ... + 1784604.

It is an arithmetic number, because the mean of its divisors is an integer number (24983630).

Almost surely, 2^214145340 is an apocalyptic number.

214145340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214145340 is an abundant number, since it is smaller than the sum of its proper divisors (385461780).

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

214145340 is a wasteful number, since it uses less digits than its factorization.

214145340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569101 (or 3569099 counting only the distinct ones).

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

The square root of 214145340 is about 14633.7056140952. The cubic root of 214145340 is about 598.2777835696.

Adding to 214145340 its reverse (43541412), we get a palindrome (257686752).

The spelling of 214145340 in words is "two hundred fourteen million, one hundred forty-five thousand, three hundred forty".