83440130 has 8 divisors (see below), whose sum is σ = 150192252. Its totient is φ = 33376048.

The previous prime is 83440129. The next prime is 83440139. The reversal of 83440130 is 3104438.

It can be written as a sum of positive squares in 2 ways, for example, as 82937449 + 502681 = 9107^2 + 709^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 83440096 and 83440105.

It is not an unprimeable number, because it can be changed into a prime (83440139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4171997 + ... + 4172016.

Almost surely, 2^83440130 is an apocalyptic number.

83440130 is a deficient number, since it is larger than the sum of its proper divisors (66752122).

83440130 is a wasteful number, since it uses less digits than its factorization.

83440130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8344020.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 83440130 is about 9134.5569131732. The cubic root of 83440130 is about 436.9767436791.

Adding to 83440130 its reverse (3104438), we get a palindrome (86544568).

The spelling of 83440130 in words is "eighty-three million, four hundred forty thousand, one hundred thirty".