10405212 has 48 divisors (see below), whose sum is σ = 25439232. Its totient is φ = 3306240.

The previous prime is 10405211. The next prime is 10405247. The reversal of 10405212 is 21250401.

It is a junction number, because it is equal to n+sod(n) for n = 10405191 and 10405200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10405211) 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, 30708 + ... + 31044.

It is an arithmetic number, because the mean of its divisors is an integer number (529984).

Almost surely, 2^10405212 is an apocalyptic number.

10405212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10405212 is an abundant number, since it is smaller than the sum of its proper divisors (15034020).

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

10405212 is a wasteful number, since it uses less digits than its factorization.

10405212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 10405212 is about 3225.7110843967. The cubic root of 10405212 is about 218.3150342387.

Adding to 10405212 its reverse (21250401), we get a palindrome (31655613).

The spelling of 10405212 in words is "ten million, four hundred five thousand, two hundred twelve".