978422592 has 224 divisors, whose sum is σ = 3072384000. Its totient is φ = 274638336.

The previous prime is 978422581. The next prime is 978422609. The reversal of 978422592 is 295224879.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5465959 + ... + 5466137.

It is an arithmetic number, because the mean of its divisors is an integer number (13716000).

Almost surely, 2^978422592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 978422592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1536192000).

978422592 is an abundant number, since it is smaller than the sum of its proper divisors (2093961408).

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

978422592 is a wasteful number, since it uses less digits than its factorization.

978422592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 274 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 978422592 is about 31279.7473135574. The cubic root of 978422592 is about 992.7551698574.

The spelling of 978422592 in words is "nine hundred seventy-eight million, four hundred twenty-two thousand, five hundred ninety-two".