84038840 has 32 divisors (see below), whose sum is σ = 194201280. Its totient is φ = 32706432.

The previous prime is 84038819. The next prime is 84038887. The reversal of 84038840 is 4883048.

It is a super-3 number, since 3×84038840³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84038840.

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, 26912 + ... + 29871.

It is an arithmetic number, because the mean of its divisors is an integer number (6068790).

Almost surely, 2^84038840 is an apocalyptic number.

It is an amenable number.

84038840 is an abundant number, since it is smaller than the sum of its proper divisors (110162440).

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

84038840 is a wasteful number, since it uses less digits than its factorization.

84038840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56831 (or 56827 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 84038840 is about 9167.2700407482. The cubic root of 84038840 is about 438.0194037956.

The spelling of 84038840 in words is "eighty-four million, thirty-eight thousand, eight hundred forty".