103900390 has 32 divisors (see below), whose sum is σ = 204501024. Its totient is φ = 37693440.

The previous prime is 103900387. The next prime is 103900393. The reversal of 103900390 is 93009301.

It is an interprime number because it is at equal distance from previous prime (103900387) and next prime (103900393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103900393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62652 + ... + 64288.

It is an arithmetic number, because the mean of its divisors is an integer number (6390657).

Almost surely, 2^103900390 is an apocalyptic number.

103900390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103900390 is a deficient number, since it is larger than the sum of its proper divisors (100600634).

103900390 is a wasteful number, since it uses less digits than its factorization.

103900390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232.

The product of its (nonzero) digits is 729, while the sum is 25.

The square root of 103900390 is about 10193.1540751624. The cubic root of 103900390 is about 470.1167508360.

Adding to 103900390 its reverse (93009301), we get a palindrome (196909691).

The spelling of 103900390 in words is "one hundred three million, nine hundred thousand, three hundred ninety".