14401855440 has 120 divisors (see below), whose sum is σ = 55275712128. Its totient is φ = 3291851520.

The previous prime is 14401855409. The next prime is 14401855477. The reversal of 14401855440 is 4455810441.

14401855440 is a `hidden beast` number, since 14 + 40 + 18 + 554 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×14401855440² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 14401855395 and 14401855404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1423716 + ... + 1433795.

Almost surely, 2^14401855440 is an apocalyptic number.

14401855440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14401855440 is an abundant number, since it is smaller than the sum of its proper divisors (40873856688).

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

14401855440 is a wasteful number, since it uses less digits than its factorization.

14401855440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857537 (or 2857528 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The spelling of 14401855440 in words is "fourteen billion, four hundred one million, eight hundred fifty-five thousand, four hundred forty".