985021408 has 48 divisors (see below), whose sum is σ = 2332955520. Its totient is φ = 399931776.

The previous prime is 985021399. The next prime is 985021409. The reversal of 985021408 is 804120589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985021409) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 111466 + ... + 119977.

It is an arithmetic number, because the mean of its divisors is an integer number (48603240).

Almost surely, 2^985021408 is an apocalyptic number.

It is an amenable number.

985021408 is an abundant number, since it is smaller than the sum of its proper divisors (1347934112).

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

985021408 is a wasteful number, since it uses less digits than its factorization.

985021408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231479 (or 231471 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 985021408 is about 31385.0507088964. The cubic root of 985021408 is about 994.9819977720.

The spelling of 985021408 in words is "nine hundred eighty-five million, twenty-one thousand, four hundred eight".