214278464 has 56 divisors (see below), whose sum is σ = 439692288. Its totient is φ = 103541760.

The previous prime is 214278451. The next prime is 214278487. The reversal of 214278464 is 464872412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332927 + ... + 333569.

It is an arithmetic number, because the mean of its divisors is an integer number (7851648).

Almost surely, 2^214278464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 214278464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219846144).

214278464 is an abundant number, since it is smaller than the sum of its proper divisors (225413824).

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

214278464 is a wasteful number, since it uses less digits than its factorization.

214278464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 813 counting only the distinct ones).

The product of its digits is 86016, while the sum is 38.

The square root of 214278464 is about 14638.2534477307. The cubic root of 214278464 is about 598.4017315286.

The spelling of 214278464 in words is "two hundred fourteen million, two hundred seventy-eight thousand, four hundred sixty-four".