14351402640 has 40 divisors (see below), whose sum is σ = 44489348928. Its totient is φ = 3827040640.

The previous prime is 14351402629. The next prime is 14351402641. The reversal of 14351402640 is 4620415341.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 14351402598 and 14351402607.

It is not an unprimeable number, because it can be changed into a prime (14351402641) 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, 29898516 + ... + 29898995.

Almost surely, 2^14351402640 is an apocalyptic number.

14351402640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14351402640 is an abundant number, since it is smaller than the sum of its proper divisors (30137946288).

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

14351402640 is a wasteful number, since it uses less digits than its factorization.

14351402640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59797527 (or 59797521 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 14351402640 its reverse (4620415341), we get a palindrome (18971817981).

The spelling of 14351402640 in words is "fourteen billion, three hundred fifty-one million, four hundred two thousand, six hundred forty".