14204734638 has 32 divisors (see below), whose sum is σ = 29468414976. Its totient is φ = 4561437888.

The previous prime is 14204734627. The next prime is 14204734667. The reversal of 14204734638 is 83643740241.

It is a super-2 number, since 2×14204734638² (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 14204734638.

It is a congruent number.

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, 358270 + ... + 395937.

It is an arithmetic number, because the mean of its divisors is an integer number (920887968).

Almost surely, 2^14204734638 is an apocalyptic number.

14204734638 is an abundant number, since it is smaller than the sum of its proper divisors (15263680338).

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

14204734638 is a wasteful number, since it uses less digits than its factorization.

14204734638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754328.

The product of its (nonzero) digits is 387072, while the sum is 42.

The spelling of 14204734638 in words is "fourteen billion, two hundred four million, seven hundred thirty-four thousand, six hundred thirty-eight".