83426040 has 192 divisors, whose sum is σ = 287258400. Its totient is φ = 20966400.

The previous prime is 83426027. The next prime is 83426041. The reversal of 83426040 is 4062438.

It is a junction number, because it is equal to n+sod(n) for n = 83425995 and 83426013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83426041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 636775 + ... + 636905.

Almost surely, 2^83426040 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 83426040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143629200).

83426040 is an abundant number, since it is smaller than the sum of its proper divisors (203832360).

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

83426040 is a wasteful number, since it uses less digits than its factorization.

83426040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 83426040 is about 9133.7856335695. The cubic root of 83426040 is about 436.9521458071.

Adding to 83426040 its reverse (4062438), we get a palindrome (87488478).

The spelling of 83426040 in words is "eighty-three million, four hundred twenty-six thousand, forty".