40007340 has 72 divisors (see below), whose sum is σ = 123963840. Its totient is φ = 10439424.

The previous prime is 40007321. The next prime is 40007353. The reversal of 40007340 is 4370004.

40007340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6096 + ... + 10824.

It is an arithmetic number, because the mean of its divisors is an integer number (1721720).

Almost surely, 2^40007340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40007340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61981920).

40007340 is an abundant number, since it is smaller than the sum of its proper divisors (83956500).

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

40007340 is a wasteful number, since it uses less digits than its factorization.

40007340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4791 (or 4786 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 40007340 is about 6325.1355716696. The cubic root of 40007340 is about 342.0161067617.

Adding to 40007340 its reverse (4370004), we get a palindrome (44377344).

The spelling of 40007340 in words is "forty million, seven thousand, three hundred forty".