4003020240 has 80 divisors (see below), whose sum is σ = 12712061376. Its totient is φ = 1041433600.

The previous prime is 4003020233. The next prime is 4003020293. The reversal of 4003020240 is 420203004.

It is a happy number.

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 (15).

It is a congruent number.

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, 193566 + ... + 213245.

Almost surely, 2^4003020240 is an apocalyptic number.

4003020240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4003020240 is an abundant number, since it is smaller than the sum of its proper divisors (8709041136).

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

4003020240 is a wasteful number, since it uses less digits than its factorization.

4003020240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406868 (or 406862 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 4003020240 is about 63269.4257916096. The cubic root of 4003020240 is about 1587.8004791340.

Adding to 4003020240 its reverse (420203004), we get a palindrome (4423223244).

The spelling of 4003020240 in words is "four billion, three million, twenty thousand, two hundred forty".