905242 has 16 divisors (see below), whose sum is σ = 1503432. Its totient is φ = 406080.

The previous prime is 905227. The next prime is 905249. The reversal of 905242 is 242509.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 826281 + 78961 = 909^2 + 281^2 .

It is not an unprimeable number, because it can be changed into a prime (905249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492 + ... + 1432.

2⁹⁰⁵²⁴² is an apocalyptic number.

905242 is a deficient number, since it is larger than the sum of its proper divisors (598190).

905242 is a wasteful number, since it uses less digits than its factorization.

905242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 905242 is about 951.4420633964. The cubic root of 905242 is about 96.7360236829.

The spelling of 905242 in words is "nine hundred five thousand, two hundred forty-two".