214021136340 has 72 divisors (see below), whose sum is σ = 708215403168. Its totient is φ = 51883911360.

The previous prime is 214021136339. The next prime is 214021136419. The reversal of 214021136340 is 43631120412.

It is a happy number.

214021136340 is a `hidden beast` number, since 2 + 1 + 4 + 0 + 21 + 1 + 3 + 634 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54043762 + ... + 54047721.

It is an arithmetic number, because the mean of its divisors is an integer number (9836325044).

Almost surely, 2^214021136340 is an apocalyptic number.

214021136340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214021136340 is an abundant number, since it is smaller than the sum of its proper divisors (494194266828).

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

214021136340 is a wasteful number, since it uses less digits than its factorization.

214021136340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108091509 (or 108091504 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 214021136340 its reverse (43631120412), we get a palindrome (257652256752).

The spelling of 214021136340 in words is "two hundred fourteen billion, twenty-one million, one hundred thirty-six thousand, three hundred forty".