84067438 has 96 divisors (see below), whose sum is σ = 174666240. Its totient is φ = 29937600.

The previous prime is 84067429. The next prime is 84067481. The reversal of 84067438 is 83476048.

It is a self number, because there is not a number n which added to its sum of digits gives 84067438.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 556663 + ... + 556813.

It is an arithmetic number, because the mean of its divisors is an integer number (1819440).

Almost surely, 2^84067438 is an apocalyptic number.

84067438 is an abundant number, since it is smaller than the sum of its proper divisors (90598802).

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

84067438 is a wasteful number, since it uses less digits than its factorization.

84067438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 84067438 is about 9168.8296963135. The cubic root of 84067438 is about 438.0690834369.

The spelling of 84067438 in words is "eighty-four million, sixty-seven thousand, four hundred thirty-eight".