214304540 has 24 divisors (see below), whose sum is σ = 461017872. Its totient is φ = 83630720.

The previous prime is 214304491. The next prime is 214304549. The reversal of 214304540 is 45403412.

It is a super-2 number, since 2×214304540² = 91852871729223200, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214304549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129854 + ... + 131493.

It is an arithmetic number, because the mean of its divisors is an integer number (19209078).

Almost surely, 2^214304540 is an apocalyptic number.

214304540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214304540 is an abundant number, since it is smaller than the sum of its proper divisors (246713332).

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

214304540 is a wasteful number, since it uses less digits than its factorization.

214304540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261397 (or 261395 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 214304540 is about 14639.1441006638. The cubic root of 214304540 is about 598.4260041353.

Adding to 214304540 its reverse (45403412), we get a palindrome (259707952).

The spelling of 214304540 in words is "two hundred fourteen million, three hundred four thousand, five hundred forty".