4040342280 has 192 divisors, whose sum is σ = 14524014960. Its totient is φ = 967624704.

The previous prime is 4040342249. The next prime is 4040342287. The reversal of 4040342280 is 822430404.

It is a happy number.

4040342280 is a `hidden beast` number, since 4 + 0 + 40 + 342 + 280 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 768731076 + 3271611204 = 27726^2 + 57198^2 .

It is not an unprimeable number, because it can be changed into a prime (4040342287) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161494 + ... + 184826.

Almost surely, 2^4040342280 is an apocalyptic number.

4040342280 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 4040342280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7262007480).

4040342280 is an abundant number, since it is smaller than the sum of its proper divisors (10483672680).

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

4040342280 is a wasteful number, since it uses less digits than its factorization.

4040342280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23400 (or 23393 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 4040342280 is about 63563.6868030796. The cubic root of 4040342280 is about 1592.7198256972.

Adding to 4040342280 its reverse (822430404), we get a palindrome (4862772684).

The spelling of 4040342280 in words is "four billion, forty million, three hundred forty-two thousand, two hundred eighty".