403212105 has 24 divisors (see below), whose sum is σ = 704246400. Its totient is φ = 213401760.

The previous prime is 403212083. The next prime is 403212113. The reversal of 403212105 is 501212304.

It is not a de Polignac number, because 403212105 - 2⁸ = 403211849 is a prime.

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, 28305 + ... + 40094.

It is an arithmetic number, because the mean of its divisors is an integer number (29343600).

Almost surely, 2^403212105 is an apocalyptic number.

403212105 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

403212105 is a deficient number, since it is larger than the sum of its proper divisors (301034295).

403212105 is a wasteful number, since it uses less digits than its factorization.

403212105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68541 (or 68538 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 403212105 is about 20080.1420562704. The cubic root of 403212105 is about 738.7732932609.

Adding to 403212105 its reverse (501212304), we get a palindrome (904424409).

The spelling of 403212105 in words is "four hundred three million, two hundred twelve thousand, one hundred five".