103403820 has 96 divisors (see below), whose sum is σ = 319156992. Its totient is φ = 24853248.

The previous prime is 103403819. The next prime is 103403827. The reversal of 103403820 is 28304301.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (103403827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31999 + ... + 35081.

It is an arithmetic number, because the mean of its divisors is an integer number (3324552).

Almost surely, 2^103403820 is an apocalyptic number.

103403820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103403820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159578496).

103403820 is an abundant number, since it is smaller than the sum of its proper divisors (215753172).

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

103403820 is a wasteful number, since it uses less digits than its factorization.

103403820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3151 (or 3149 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 103403820 is about 10168.7668868944. The cubic root of 103403820 is about 469.3666132368.

The spelling of 103403820 in words is "one hundred three million, four hundred three thousand, eight hundred twenty".