978327040 has 80 divisors (see below), whose sum is σ = 2356402752. Its totient is φ = 389545984.

The previous prime is 978327029. The next prime is 978327079. The reversal of 978327040 is 40723879.

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

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 978326984 and 978327002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657177 + ... + 658663.

Almost surely, 2^978327040 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 978327040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1178201376).

978327040 is an abundant number, since it is smaller than the sum of its proper divisors (1378075712).

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

978327040 is a wasteful number, since it uses less digits than its factorization.

978327040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767 (or 1751 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 978327040 is about 31278.2198981975. The cubic root of 978327040 is about 992.7228515691.

The spelling of 978327040 in words is "nine hundred seventy-eight million, three hundred twenty-seven thousand, forty".