84066040 has 16 divisors (see below), whose sum is σ = 189148680. Its totient is φ = 33626400.

The previous prime is 84066029. The next prime is 84066049. The reversal of 84066040 is 4066048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84066049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050786 + ... + 1050865.

Almost surely, 2^84066040 is an apocalyptic number.

It is an amenable number.

84066040 is an abundant number, since it is smaller than the sum of its proper divisors (105082640).

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

84066040 is a wasteful number, since it uses less digits than its factorization.

84066040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101662 (or 2101658 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 84066040 is about 9168.7534594404. The cubic root of 84066040 is about 438.0666551325.

The spelling of 84066040 in words is "eighty-four million, sixty-six thousand, forty".