40334420 has 48 divisors (see below), whose sum is σ = 98410368. Its totient is φ = 13599360.

The previous prime is 40334381. The next prime is 40334423. The reversal of 40334420 is 2443304.

It is a happy number.

40334420 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 (20).

It is a junction number, because it is equal to n+sod(n) for n = 40334392 and 40334401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40334423) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6179 + ... + 10901.

It is an arithmetic number, because the mean of its divisors is an integer number (2050216).

Almost surely, 2^40334420 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 40334420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49205184).

40334420 is an abundant number, since it is smaller than the sum of its proper divisors (58075948).

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

40334420 is a wasteful number, since it uses less digits than its factorization.

40334420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4800 (or 4798 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 40334420 is about 6350.9385133223. The cubic root of 40334420 is about 342.9456291121.

Adding to 40334420 its reverse (2443304), we get a palindrome (42777724).

The spelling of 40334420 in words is "forty million, three hundred thirty-four thousand, four hundred twenty".