838353285 has 96 divisors (see below), whose sum is σ = 1819853568. Its totient is φ = 346844160.

The previous prime is 838353277. The next prime is 838353287. The reversal of 838353285 is 582353838.

838353285 is a `hidden beast` number, since 8 + 38 + 3 + 532 + 85 = 666.

It is not a de Polignac number, because 838353285 - 2³ = 838353277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 838353285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838353287) 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 95 ways as a sum of consecutive naturals, for example, 1084159 + ... + 1084931.

It is an arithmetic number, because the mean of its divisors is an integer number (18956808).

Almost surely, 2^838353285 is an apocalyptic number.

It is an amenable number.

838353285 is an abundant number, since it is smaller than the sum of its proper divisors (981500283).

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

838353285 is a wasteful number, since it uses less digits than its factorization.

838353285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115 (or 1112 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 838353285 is about 28954.3310231820. The cubic root of 838353285 is about 942.9218294364.

The spelling of 838353285 in words is "eight hundred thirty-eight million, three hundred fifty-three thousand, two hundred eighty-five".