853915450 has 12 divisors (see below), whose sum is σ = 1588282830. Its totient is φ = 341566160.

The previous prime is 853915399. The next prime is 853915453. The reversal of 853915450 is 54519358.

It can be written as a sum of positive squares in 3 ways, for example, as 532824889 + 321090561 = 23083^2 + 17919^2 .

It is not an unprimeable number, because it can be changed into a prime (853915453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8539105 + ... + 8539204.

Almost surely, 2^853915450 is an apocalyptic number.

853915450 is a deficient number, since it is larger than the sum of its proper divisors (734367380).

853915450 is a wasteful number, since it uses less digits than its factorization.

853915450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17078321 (or 17078316 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 853915450 is about 29221.8317358786. The cubic root of 853915450 is about 948.7205120553.

The spelling of 853915450 in words is "eight hundred fifty-three million, nine hundred fifteen thousand, four hundred fifty".