8978040 has 160 divisors (see below), whose sum is σ = 32147280. Its totient is φ = 2239488.

The previous prime is 8977961. The next prime is 8978059. The reversal of 8978040 is 408798.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 8977986 and 8978004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 54999 + ... + 55161.

Almost surely, 2^8978040 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 8978040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16073640).

8978040 is an abundant number, since it is smaller than the sum of its proper divisors (23169240).

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

8978040 is a wasteful number, since it uses less digits than its factorization.

8978040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 8978040 is about 2996.3377646721. The cubic root of 8978040 is about 207.8390643676.

The spelling of 8978040 in words is "eight million, nine hundred seventy-eight thousand, forty".