214442840 has 32 divisors (see below), whose sum is σ = 483371280. Its totient is φ = 85621632.

The previous prime is 214442831. The next prime is 214442923. The reversal of 214442840 is 48244412.

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 7 ways as a sum of consecutive naturals, for example, 18914 + ... + 28046.

Almost surely, 2^214442840 is an apocalyptic number.

214442840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214442840 is an abundant number, since it is smaller than the sum of its proper divisors (268928440).

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

214442840 is a wasteful number, since it uses less digits than its factorization.

214442840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9731 (or 9727 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 29.

The square root of 214442840 is about 14643.8669756318. The cubic root of 214442840 is about 598.5547065252.

The spelling of 214442840 in words is "two hundred fourteen million, four hundred forty-two thousand, eight hundred forty".