1340217210 has 32 divisors (see below), whose sum is σ = 3217942080. Its totient is φ = 357233408.

The previous prime is 1340217191. The next prime is 1340217227. The reversal of 1340217210 is 127120431.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69709 + ... + 86831.

It is an arithmetic number, because the mean of its divisors is an integer number (100560690).

Almost surely, 2^1340217210 is an apocalyptic number.

1340217210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340217210 is an abundant number, since it is smaller than the sum of its proper divisors (1877724870).

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

1340217210 is a wasteful number, since it uses less digits than its factorization.

1340217210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19742.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 1340217210 is about 36608.9771777361. The cubic root of 1340217210 is about 1102.5333374672.

Adding to 1340217210 its reverse (127120431), we get a palindrome (1467337641).

The spelling of 1340217210 in words is "one billion, three hundred forty million, two hundred seventeen thousand, two hundred ten".