214438390 has 24 divisors (see below), whose sum is σ = 391626720. Its totient is φ = 84527040.

The previous prime is 214438387. The next prime is 214438397. The reversal of 214438390 is 93834412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214438397) 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 11 ways as a sum of consecutive naturals, for example, 411330 + ... + 411850.

It is an arithmetic number, because the mean of its divisors is an integer number (16317780).

Almost surely, 2^214438390 is an apocalyptic number.

214438390 is a deficient number, since it is larger than the sum of its proper divisors (177188330).

214438390 is an frugal number, since it uses more digits than its factorization.

214438390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 214438390 is about 14643.7150341025. The cubic root of 214438390 is about 598.5505662038.

The spelling of 214438390 in words is "two hundred fourteen million, four hundred thirty-eight thousand, three hundred ninety".