83442920 has 32 divisors (see below), whose sum is σ = 204815520. Its totient is φ = 30342720.

The previous prime is 83442911. The next prime is 83442923. The reversal of 83442920 is 2924438.

It is not an unprimeable number, because it can be changed into a prime (83442923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94382 + ... + 95261.

It is an arithmetic number, because the mean of its divisors is an integer number (6400485).

Almost surely, 2^83442920 is an apocalyptic number.

It is an amenable number.

83442920 is an abundant number, since it is smaller than the sum of its proper divisors (121372600).

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

83442920 is a wasteful number, since it uses less digits than its factorization.

83442920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189665 (or 189661 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 83442920 is about 9134.7096286636. The cubic root of 83442920 is about 436.9816140435.

The spelling of 83442920 in words is "eighty-three million, four hundred forty-two thousand, nine hundred twenty".