103206840 has 128 divisors (see below), whose sum is σ = 346187520. Its totient is φ = 24396800.

The previous prime is 103206833. The next prime is 103206863. The reversal of 103206840 is 48602301.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 103206840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53167 + ... + 55073.

It is an arithmetic number, because the mean of its divisors is an integer number (2704590).

Almost surely, 2^103206840 is an apocalyptic number.

103206840 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 103206840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173093760).

103206840 is an abundant number, since it is smaller than the sum of its proper divisors (242980680).

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

103206840 is a wasteful number, since it uses less digits than its factorization.

103206840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973 (or 1969 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 103206840 is about 10159.0767297033. The cubic root of 103206840 is about 469.0683824562.

The spelling of 103206840 in words is "one hundred three million, two hundred six thousand, eight hundred forty".