984213840 has 80 divisors (see below), whose sum is σ = 3116014848. Its totient is φ = 256869888.

The previous prime is 984213809. The next prime is 984213847. The reversal of 984213840 is 48312489.

984213840 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (984213847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32347 + ... + 54906.

Almost surely, 2^984213840 is an apocalyptic number.

It is an amenable number.

984213840 is an abundant number, since it is smaller than the sum of its proper divisors (2131801008).

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

984213840 is a wasteful number, since it uses less digits than its factorization.

984213840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87316 (or 87310 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 984213840 is about 31372.1825826639. The cubic root of 984213840 is about 994.7100120390.

The spelling of 984213840 in words is "nine hundred eighty-four million, two hundred thirteen thousand, eight hundred forty".