849513490 has 24 divisors (see below), whose sum is σ = 1778778252. Its totient is φ = 291261600.

The previous prime is 849513473. The next prime is 849513493. The reversal of 849513490 is 94315948.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 835383409 + 14130081 = 28903^2 + 3759^2 .

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (849513493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 866361 + ... + 867340.

Almost surely, 2^849513490 is an apocalyptic number.

849513490 is an abundant number, since it is smaller than the sum of its proper divisors (929264762).

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

849513490 is a wasteful number, since it uses less digits than its factorization.

849513490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733722 (or 1733715 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 849513490 is about 29146.4147023266. The cubic root of 849513490 is about 947.0874750589.

The spelling of 849513490 in words is "eight hundred forty-nine million, five hundred thirteen thousand, four hundred ninety".