214511660 has 24 divisors (see below), whose sum is σ = 491427216. Its totient is φ = 78004160.

The previous prime is 214511651. The next prime is 214511663. The reversal of 214511660 is 66115412.

It is not an unprimeable number, because it can be changed into a prime (214511663) by changing a digit.

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, 487307 + ... + 487746.

It is an arithmetic number, because the mean of its divisors is an integer number (20476134).

Almost surely, 2^214511660 is an apocalyptic number.

214511660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214511660 is an abundant number, since it is smaller than the sum of its proper divisors (276915556).

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

214511660 is a wasteful number, since it uses less digits than its factorization.

214511660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975073 (or 975071 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 214511660 is about 14646.2165763039. The cubic root of 214511660 is about 598.6187300029.

The spelling of 214511660 in words is "two hundred fourteen million, five hundred eleven thousand, six hundred sixty".