905412 has 24 divisors (see below), whose sum is σ = 2128896. Its totient is φ = 299488.

The previous prime is 905381. The next prime is 905413. The reversal of 905412 is 214509.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (905413) by changing a digit.

905412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2173 + ... + 2555.

It is an arithmetic number, because the mean of its divisors is an integer number (88704).

2⁹⁰⁵⁴¹² is an apocalyptic number.

It is an amenable number.

905412 is an abundant number, since it is smaller than the sum of its proper divisors (1223484).

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

905412 is a wasteful number, since it uses less digits than its factorization.

905412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 905412 is about 951.5313972749. The cubic root of 905412 is about 96.7420788205.

The spelling of 905412 in words is "nine hundred five thousand, four hundred twelve".