214405378 has 8 divisors (see below), whose sum is σ = 350845200. Its totient is φ = 97456980.

The previous prime is 214405369. The next prime is 214405391. The reversal of 214405378 is 873504412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×214405378² = 91939332230645768, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 4872828 + ... + 4872871.

It is an arithmetic number, because the mean of its divisors is an integer number (43855650).

Almost surely, 2^214405378 is an apocalyptic number.

214405378 is a deficient number, since it is larger than the sum of its proper divisors (136439822).

214405378 is a wasteful number, since it uses less digits than its factorization.

214405378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9745712.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 214405378 is about 14642.5878177322. The cubic root of 214405378 is about 598.5198497427.

The spelling of 214405378 in words is "two hundred fourteen million, four hundred five thousand, three hundred seventy-eight".