214687340 has 24 divisors (see below), whose sum is σ = 515249952. Its totient is φ = 73607040.

The previous prime is 214687337. The next prime is 214687349. The reversal of 214687340 is 43786412.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 214687340.

It is not an unprimeable number, because it can be changed into a prime (214687349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766601 + ... + 766880.

It is an arithmetic number, because the mean of its divisors is an integer number (21468748).

Almost surely, 2^214687340 is an apocalyptic number.

214687340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214687340 is an abundant number, since it is smaller than the sum of its proper divisors (300562612).

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

214687340 is a wasteful number, since it uses less digits than its factorization.

214687340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533497 (or 1533495 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 214687340 is about 14652.2128021675. The cubic root of 214687340 is about 598.7821036274.

The spelling of 214687340 in words is "two hundred fourteen million, six hundred eighty-seven thousand, three hundred forty".