140003424 has 96 divisors (see below), whose sum is σ = 445495680. Its totient is φ = 42422400.

The previous prime is 140003393. The next prime is 140003429. The reversal of 140003424 is 424300041.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 140003397 and 140003406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140003429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2139 + ... + 16869.

It is an arithmetic number, because the mean of its divisors is an integer number (4640580).

Almost surely, 2^140003424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140003424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222747840).

140003424 is an abundant number, since it is smaller than the sum of its proper divisors (305492256).

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

140003424 is a wasteful number, since it uses less digits than its factorization.

140003424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14761 (or 14747 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 140003424 is about 11832.3042557230. The cubic root of 140003424 is about 519.2536432696.

Adding to 140003424 its reverse (424300041), we get a palindrome (564303465).

It can be divided in two parts, 14000 and 3424, that added together give a square (17424 = 132²).

The spelling of 140003424 in words is "one hundred forty million, three thousand, four hundred twenty-four".