20406234814 has 8 divisors (see below), whose sum is σ = 34982116848. Its totient is φ = 8745529200.

The previous prime is 20406234811. The next prime is 20406234887. The reversal of 20406234814 is 41843260402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20406234814² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20406234814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20406234811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728794087 + ... + 728794114.

It is an arithmetic number, because the mean of its divisors is an integer number (4372764606).

Almost surely, 2^20406234814 is an apocalyptic number.

20406234814 is a deficient number, since it is larger than the sum of its proper divisors (14575882034).

20406234814 is a wasteful number, since it uses less digits than its factorization.

20406234814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457588210.

The product of its (nonzero) digits is 36864, while the sum is 34.

The spelling of 20406234814 in words is "twenty billion, four hundred six million, two hundred thirty-four thousand, eight hundred fourteen".