83425340 has 48 divisors (see below), whose sum is σ = 181923840. Its totient is φ = 32101440.

The previous prime is 83425337. The next prime is 83425357. The reversal of 83425340 is 4352438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147899 + ... + 148461.

It is an arithmetic number, because the mean of its divisors is an integer number (3790080).

Almost surely, 2^83425340 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 83425340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90961920).

83425340 is an abundant number, since it is smaller than the sum of its proper divisors (98498500).

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

83425340 is a wasteful number, since it uses less digits than its factorization.

83425340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 83425340 is about 9133.7473142188. The cubic root of 83425340 is about 436.9509236972.

Adding to 83425340 its reverse (4352438), we get a palindrome (87777778).

The spelling of 83425340 in words is "eighty-three million, four hundred twenty-five thousand, three hundred forty".