905490433 has 4 divisors (see below), whose sum is σ = 911567700. Its totient is φ = 899413168.

The previous prime is 905490419. The next prime is 905490449. The reversal of 905490433 is 334094509.

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

It can be written as a sum of positive squares in 2 ways, for example, as 420742144 + 484748289 = 20512^2 + 22017^2 .

It is a cyclic number.

It is not a de Polignac number, because 905490433 - 2⁵ = 905490401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 905490392 and 905490401.

It is not an unprimeable number, because it can be changed into a prime (905490493) 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 3 ways as a sum of consecutive naturals, for example, 3038410 + ... + 3038707.

It is an arithmetic number, because the mean of its divisors is an integer number (227891925).

Almost surely, 2^905490433 is an apocalyptic number.

It is an amenable number.

905490433 is a deficient number, since it is larger than the sum of its proper divisors (6077267).

905490433 is a wasteful number, since it uses less digits than its factorization.

905490433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6077266.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 905490433 is about 30091.3680812289. The cubic root of 905490433 is about 967.4487222744.

The spelling of 905490433 in words is "nine hundred five million, four hundred ninety thousand, four hundred thirty-three".