909442 has 4 divisors (see below), whose sum is σ = 1364166. Its totient is φ = 454720.

The previous prime is 909437. The next prime is 909451. The reversal of 909442 is 244909.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 904401 + 5041 = 951^2 + 71^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 909442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227359 + ... + 227362.

2⁹⁰⁹⁴⁴² is an apocalyptic number.

909442 is a deficient number, since it is larger than the sum of its proper divisors (454724).

909442 is a wasteful number, since it uses less digits than its factorization.

909442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454723.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 909442 is about 953.6466850988. The cubic root of 909442 is about 96.8853997854.

The spelling of 909442 in words is "nine hundred nine thousand, four hundred forty-two".