214428920 has 16 divisors (see below), whose sum is σ = 482465160. Its totient is φ = 85771552.

The previous prime is 214428919. The next prime is 214428943. The reversal of 214428920 is 29824412.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2680322 + ... + 2680401.

Almost surely, 2^214428920 is an apocalyptic number.

214428920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214428920 is an abundant number, since it is smaller than the sum of its proper divisors (268036240).

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

214428920 is a wasteful number, since it uses less digits than its factorization.

214428920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5360734 (or 5360730 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 214428920 is about 14643.3916836230. The cubic root of 214428920 is about 598.5417550369.

The spelling of 214428920 in words is "two hundred fourteen million, four hundred twenty-eight thousand, nine hundred twenty".