84238424 has 8 divisors (see below), whose sum is σ = 157947060. Its totient is φ = 42119208.

The previous prime is 84238421. The next prime is 84238459. The reversal of 84238424 is 42483248.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×84238424² = 14192224156007552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84238421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5264894 + ... + 5264909.

Almost surely, 2^84238424 is an apocalyptic number.

It is an amenable number.

84238424 is a deficient number, since it is larger than the sum of its proper divisors (73708636).

84238424 is a wasteful number, since it uses less digits than its factorization.

84238424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10529809 (or 10529805 counting only the distinct ones).

The product of its digits is 49152, while the sum is 35.

The square root of 84238424 is about 9178.1492687796. The cubic root of 84238424 is about 438.3658806940.

The spelling of 84238424 in words is "eighty-four million, two hundred thirty-eight thousand, four hundred twenty-four".