985447450 has 72 divisors (see below), whose sum is σ = 2001434400. Its totient is φ = 360809280.

The previous prime is 985447433. The next prime is 985447471. The reversal of 985447450 is 54744589.

It is a super-2 number, since 2×985447450² = 1942213353423005000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 985447450.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1174131 + ... + 1174969.

It is an arithmetic number, because the mean of its divisors is an integer number (27797700).

Almost surely, 2^985447450 is an apocalyptic number.

985447450 is the 16780-th nonagonal number.

985447450 is an abundant number, since it is smaller than the sum of its proper divisors (1015986950).

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

985447450 is a wasteful number, since it uses less digits than its factorization.

985447450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 46.

The square root of 985447450 is about 31391.8373148180. The cubic root of 985447450 is about 995.1254271485.

The spelling of 985447450 in words is "nine hundred eighty-five million, four hundred forty-seven thousand, four hundred fifty".