852105490 has 16 divisors (see below), whose sum is σ = 1536081048. Its totient is φ = 340333056.

The previous prime is 852105481. The next prime is 852105493. The reversal of 852105490 is 94501258.

It can be written as a sum of positive squares in 4 ways, for example, as 400840441 + 451265049 = 20021^2 + 21243^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (852105493) 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, 56577 + ... + 70036.

Almost surely, 2^852105490 is an apocalyptic number.

852105490 is a deficient number, since it is larger than the sum of its proper divisors (683975558).

852105490 is a wasteful number, since it uses less digits than its factorization.

852105490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127293.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 852105490 is about 29190.8459966476. The cubic root of 852105490 is about 948.0497349387.

The spelling of 852105490 in words is "eight hundred fifty-two million, one hundred five thousand, four hundred ninety".