40030202440 has 64 divisors (see below), whose sum is σ = 95007168000. Its totient is φ = 15137533440.

The previous prime is 40030202423. The next prime is 40030202477. The reversal of 40030202440 is 4420203004.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309060 + ... + 419020.

It is an arithmetic number, because the mean of its divisors is an integer number (1484487000).

Almost surely, 2^40030202440 is an apocalyptic number.

40030202440 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 40030202440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47503584000).

40030202440 is an abundant number, since it is smaller than the sum of its proper divisors (54976965560).

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

40030202440 is a wasteful number, since it uses less digits than its factorization.

40030202440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110470 (or 110466 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 40030202440 its reverse (4420203004), we get a palindrome (44450405444).

The spelling of 40030202440 in words is "forty billion, thirty million, two hundred two thousand, four hundred forty".