214544664 has 48 divisors (see below), whose sum is σ = 589032600. Its totient is φ = 70533504.

The previous prime is 214544657. The next prime is 214544669. The reversal of 214544664 is 466445412.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214544669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15154 + ... + 25665.

Almost surely, 2^214544664 is an apocalyptic number.

214544664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

214544664 is an abundant number, since it is smaller than the sum of its proper divisors (374487936).

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

214544664 is a wasteful number, since it uses less digits than its factorization.

214544664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40904 (or 40897 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 214544664 is about 14647.3432403286. The cubic root of 214544664 is about 598.6494288771.

The spelling of 214544664 in words is "two hundred fourteen million, five hundred forty-four thousand, six hundred sixty-four".