214243015440 has 80 divisors (see below), whose sum is σ = 703221205248. Its totient is φ = 53770795008.

The previous prime is 214243015421. The next prime is 214243015499. The reversal of 214243015440 is 44510342412.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 214243015398 and 214243015407.

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, 26251192 + ... + 26259351.

Almost surely, 2^214243015440 is an apocalyptic number.

214243015440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214243015440 is an abundant number, since it is smaller than the sum of its proper divisors (488978189808).

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

214243015440 is a wasteful number, since it uses less digits than its factorization.

214243015440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52510576 (or 52510570 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 214243015440 its reverse (44510342412), we get a palindrome (258753357852).

The spelling of 214243015440 in words is "two hundred fourteen billion, two hundred forty-three million, fifteen thousand, four hundred forty".