4040303240 has 32 divisors (see below), whose sum is σ = 9093168000. Its totient is φ = 1615679424.

The previous prime is 4040303237. The next prime is 4040303251. The reversal of 4040303240 is 423030404.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 161921 + ... + 185199.

It is an arithmetic number, because the mean of its divisors is an integer number (284161500).

Almost surely, 2^4040303240 is an apocalyptic number.

4040303240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4040303240 is an abundant number, since it is smaller than the sum of its proper divisors (5052864760).

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

4040303240 is a wasteful number, since it uses less digits than its factorization.

4040303240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27629 (or 27625 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 4040303240 is about 63563.3797087600. The cubic root of 4040303240 is about 1592.7146957702.

Adding to 4040303240 its reverse (423030404), we get a palindrome (4463333644).

The spelling of 4040303240 in words is "four billion, forty million, three hundred three thousand, two hundred forty".