84438234 has 32 divisors (see below), whose sum is σ = 193697280. Its totient is φ = 27237600.

The previous prime is 84438199. The next prime is 84438239. The reversal of 84438234 is 43283448.

It is a super-2 number, since 2×84438234² = 14259630722077512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84438239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23547 + ... + 26894.

It is an arithmetic number, because the mean of its divisors is an integer number (6053040).

Almost surely, 2^84438234 is an apocalyptic number.

84438234 is an abundant number, since it is smaller than the sum of its proper divisors (109259046).

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

84438234 is a wasteful number, since it uses less digits than its factorization.

84438234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50483 (or 50477 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 84438234 is about 9189.0279137676. The cubic root of 84438234 is about 438.7122021643.

The spelling of 84438234 in words is "eighty-four million, four hundred thirty-eight thousand, two hundred thirty-four".