40234320 has 200 divisors, whose sum is σ = 159882624. Its totient is φ = 9186048.

The previous prime is 40234307. The next prime is 40234331. The reversal of 40234320 is 2343204.

40234320 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 a junction number, because it is equal to n+sod(n) for n = 40234293 and 40234302.

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 44917 + ... + 45803.

Almost surely, 2^40234320 is an apocalyptic number.

40234320 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 40234320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79941312).

40234320 is an abundant number, since it is smaller than the sum of its proper divisors (119648304).

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

40234320 is a wasteful number, since it uses less digits than its factorization.

40234320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 40234320 is about 6343.0528927323. The cubic root of 40234320 is about 342.6616921731.

Adding to 40234320 its reverse (2343204), we get a palindrome (42577524).

The spelling of 40234320 in words is "forty million, two hundred thirty-four thousand, three hundred twenty".