14405744840 has 32 divisors (see below), whose sum is σ = 32416373880. Its totient is φ = 5761684992.

The previous prime is 14405744833. The next prime is 14405744863. The reversal of 14405744840 is 4844750441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14318994244 + 86750596 = 119662^2 + 9314^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651242 + ... + 672998.

Almost surely, 2^14405744840 is an apocalyptic number.

14405744840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14405744840 is an abundant number, since it is smaller than the sum of its proper divisors (18010629040).

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

14405744840 is a wasteful number, since it uses less digits than its factorization.

14405744840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38321 (or 38317 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 41.

The spelling of 14405744840 in words is "fourteen billion, four hundred five million, seven hundred forty-four thousand, eight hundred forty".