214640872 has 32 divisors (see below), whose sum is σ = 424353600. Its totient is φ = 101499264.

The previous prime is 214640849. The next prime is 214640887. The reversal of 214640872 is 278046412.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156333 + ... + 157699.

It is an arithmetic number, because the mean of its divisors is an integer number (13261050).

Almost surely, 2^214640872 is an apocalyptic number.

It is an amenable number.

214640872 is a deficient number, since it is larger than the sum of its proper divisors (209712728).

214640872 is a wasteful number, since it uses less digits than its factorization.

214640872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425 (or 2421 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 214640872 is about 14650.6270172986. The cubic root of 214640872 is about 598.7388993806.

It can be divided in two parts, 214640 and 872, that added together give a palindrome (215512).

The spelling of 214640872 in words is "two hundred fourteen million, six hundred forty thousand, eight hundred seventy-two".