14639369440 has 48 divisors (see below), whose sum is σ = 34761146112. Its totient is φ = 5826010624.

The previous prime is 14639369419. The next prime is 14639369449. The reversal of 14639369440 is 4496393641.

It is a happy number.

It is a super-2 number, since 2×14639369440² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14639369449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200704 + ... + 263743.

It is an arithmetic number, because the mean of its divisors is an integer number (724190544).

Almost surely, 2^14639369440 is an apocalyptic number.

14639369440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14639369440 is an abundant number, since it is smaller than the sum of its proper divisors (20121776672).

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

14639369440 is a wasteful number, since it uses less digits than its factorization.

14639369440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464659 (or 464651 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 49.

The spelling of 14639369440 in words is "fourteen billion, six hundred thirty-nine million, three hundred sixty-nine thousand, four hundred forty".