4003124240 has 80 divisors (see below), whose sum is σ = 10025358336. Its totient is φ = 1482201600.

The previous prime is 4003124233. The next prime is 4003124267. The reversal of 4003124240 is 424213004.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21950 + ... + 92130.

Almost surely, 2^4003124240 is an apocalyptic number.

4003124240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4003124240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5012679168).

4003124240 is an abundant number, since it is smaller than the sum of its proper divisors (6022234096).

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

4003124240 is a wasteful number, since it uses less digits than its factorization.

4003124240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70248 (or 70242 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4003124240 is about 63270.2476682366. The cubic root of 4003124240 is about 1587.8142295699.

Adding to 4003124240 its reverse (424213004), we get a palindrome (4427337244).

The spelling of 4003124240 in words is "four billion, three million, one hundred twenty-four thousand, two hundred forty".