103449240 has 96 divisors (see below), whose sum is σ = 339318720. Its totient is φ = 27331584.

The previous prime is 103449223. The next prime is 103449253. The reversal of 103449240 is 42944301.

It is a Cunningham number, because it is equal to 10171²-1.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39409 + ... + 41951.

It is an arithmetic number, because the mean of its divisors is an integer number (3534570).

Almost surely, 2^103449240 is an apocalyptic number.

103449240 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 103449240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169659360).

103449240 is an abundant number, since it is smaller than the sum of its proper divisors (235869480).

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

103449240 is a wasteful number, since it uses less digits than its factorization.

103449240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673 (or 2666 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 103449240 is about 10170.9999508406. Note that the first 4 decimals coincide. The cubic root of 103449240 is about 469.4353260785.

The spelling of 103449240 in words is "one hundred three million, four hundred forty-nine thousand, two hundred forty".