20435040214 has 4 divisors (see below), whose sum is σ = 30652560324. Its totient is φ = 10217520106.

The previous prime is 20435040209. The next prime is 20435040217. The reversal of 20435040214 is 41204053402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20435040217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5108760052 + ... + 5108760055.

It is an arithmetic number, because the mean of its divisors is an integer number (7663140081).

Almost surely, 2^20435040214 is an apocalyptic number.

20435040214 is a deficient number, since it is larger than the sum of its proper divisors (10217520110).

20435040214 is a wasteful number, since it uses less digits than its factorization.

20435040214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10217520109.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20435040214 its reverse (41204053402), we get a palindrome (61639093616).

The spelling of 20435040214 in words is "twenty billion, four hundred thirty-five million, forty thousand, two hundred fourteen".