103442430 has 96 divisors (see below), whose sum is σ = 311066784. Its totient is φ = 21821184.

The previous prime is 103442429. The next prime is 103442461. The reversal of 103442430 is 34244301.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 103442397 and 103442406.

It is a congruent number.

It is an unprimeable number.

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, 16404 + ... + 21816.

It is an arithmetic number, because the mean of its divisors is an integer number (3240279).

Almost surely, 2^103442430 is an apocalyptic number.

103442430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 103442430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155533392).

103442430 is an abundant number, since it is smaller than the sum of its proper divisors (207624354).

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

103442430 is a wasteful number, since it uses less digits than its factorization.

103442430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5450 (or 5443 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 103442430 is about 10170.6651699877. The cubic root of 103442430 is about 469.4250249726.

Adding to 103442430 its reverse (34244301), we get a palindrome (137686731).

The spelling of 103442430 in words is "one hundred three million, four hundred forty-two thousand, four hundred thirty".