40340355330 has 64 divisors (see below), whose sum is σ = 105859353600. Its totient is φ = 9757168320.

The previous prime is 40340355317. The next prime is 40340355337. The reversal of 40340355330 is 3355304304.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (40340355337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5641 + ... + 284099.

It is an arithmetic number, because the mean of its divisors is an integer number (1654052400).

Almost surely, 2^40340355330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40340355330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52929676800).

40340355330 is an abundant number, since it is smaller than the sum of its proper divisors (65518998270).

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

40340355330 is a wasteful number, since it uses less digits than its factorization.

40340355330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278919.

The product of its (nonzero) digits is 32400, while the sum is 30.

Adding to 40340355330 its reverse (3355304304), we get a palindrome (43695659634).

The spelling of 40340355330 in words is "forty billion, three hundred forty million, three hundred fifty-five thousand, three hundred thirty".