103840380 has 120 divisors (see below), whose sum is σ = 372327648. Its totient is φ = 23732352.

The previous prime is 103840349. The next prime is 103840439. The reversal of 103840380 is 83048301.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6762 + ... + 15918.

Almost surely, 2^103840380 is an apocalyptic number.

103840380 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 103840380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186163824).

103840380 is an abundant number, since it is smaller than the sum of its proper divisors (268487268).

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

103840380 is a wasteful number, since it uses less digits than its factorization.

103840380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9185 (or 9174 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 103840380 is about 10190.2100076495. The cubic root of 103840380 is about 470.0262245817.

Adding to 103840380 its reverse (83048301), we get a palindrome (186888681).

The spelling of 103840380 in words is "one hundred three million, eight hundred forty thousand, three hundred eighty".