84073040 has 20 divisors (see below), whose sum is σ = 195470004. Its totient is φ = 33629184.

The previous prime is 84073039. The next prime is 84073069. The reversal of 84073040 is 4037048.

It can be written as a sum of positive squares in 2 ways, for example, as 53114944 + 30958096 = 7288^2 + 5564^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525377 + ... + 525536.

Almost surely, 2^84073040 is an apocalyptic number.

84073040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84073040 is an abundant number, since it is smaller than the sum of its proper divisors (111396964).

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

84073040 is a wasteful number, since it uses less digits than its factorization.

84073040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050926 (or 1050920 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 84073040 is about 9169.1351827749. The cubic root of 84073040 is about 438.0788137540.

The spelling of 84073040 in words is "eighty-four million, seventy-three thousand, forty".