84866040 has 288 divisors, whose sum is σ = 340919280. Its totient is φ = 18192384.

The previous prime is 84866029. The next prime is 84866063. The reversal of 84866040 is 4066848.

84866040 is a `hidden beast` number, since 8 + 48 + 6 + 604 + 0 = 666.

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 = 84865986 and 84866004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 299739 + ... + 300021.

Almost surely, 2^84866040 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 84866040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170459640).

84866040 is an abundant number, since it is smaller than the sum of its proper divisors (256053240).

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

84866040 is a wasteful number, since it uses less digits than its factorization.

84866040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 84866040 is about 9212.2765915923. The cubic root of 84866040 is about 439.4518656491.

The spelling of 84866040 in words is "eighty-four million, eight hundred sixty-six thousand, forty".