83210042 has 8 divisors (see below), whose sum is σ = 125449236. Its totient is φ = 41393632.

The previous prime is 83210041. The next prime is 83210051. The reversal of 83210042 is 24001238.

It can be written as a sum of positive squares in 2 ways, for example, as 61763881 + 21446161 = 7859^2 + 4631^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×83210042² = 13847822179283528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83209996 and 83210023.

It is not an unprimeable number, because it can be changed into a prime (83210041) 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 3 ways as a sum of consecutive naturals, for example, 105203 + ... + 105990.

Almost surely, 2^83210042 is an apocalyptic number.

83210042 is a deficient number, since it is larger than the sum of its proper divisors (42239194).

83210042 is a wasteful number, since it uses less digits than its factorization.

83210042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211392.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 83210042 is about 9121.9538477236. The cubic root of 83210042 is about 436.5747162476.

The spelling of 83210042 in words is "eighty-three million, two hundred ten thousand, forty-two".