103040406 has 48 divisors (see below), whose sum is σ = 257441184. Its totient is φ = 29175552.

The previous prime is 103040381. The next prime is 103040419. The reversal of 103040406 is 604040301.

103040406 = T₆₁ + T₆₂ + ... + T₈₅₁.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10620 + ... + 17856.

It is an arithmetic number, because the mean of its divisors is an integer number (5363358).

Almost surely, 2^103040406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103040406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128720592).

103040406 is an abundant number, since it is smaller than the sum of its proper divisors (154400778).

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

103040406 is a wasteful number, since it uses less digits than its factorization.

103040406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7365 (or 7362 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 103040406 is about 10150.8820306415. The cubic root of 103040406 is about 468.8161028911.

Adding to 103040406 its reverse (604040301), we get a palindrome (707080707).

The spelling of 103040406 in words is "one hundred three million, forty thousand, four hundred six".