40342001826 has 128 divisors (see below), whose sum is σ = 98986567680. Its totient is φ = 10705125888.

The previous prime is 40342001813. The next prime is 40342001851. The reversal of 40342001826 is 62810024304.

It is a super-2 number, since 2×40342001826² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40342001793 and 40342001802.

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 63 ways as a sum of consecutive naturals, for example, 10075941 + ... + 10079943.

It is an arithmetic number, because the mean of its divisors is an integer number (773332560).

Almost surely, 2^40342001826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40342001826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49493283840).

40342001826 is an abundant number, since it is smaller than the sum of its proper divisors (58644565854).

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

40342001826 is a wasteful number, since it uses less digits than its factorization.

40342001826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4280.

The product of its (nonzero) digits is 9216, while the sum is 30.

The spelling of 40342001826 in words is "forty billion, three hundred forty-two million, one thousand, eight hundred twenty-six".