84440124 has 24 divisors (see below), whose sum is σ = 218919120. Its totient is φ = 28146672.

The previous prime is 84440099. The next prime is 84440131. The reversal of 84440124 is 42104448.

It is a happy number.

It is a super-2 number, since 2×84440124² = 14260269082270752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 7 ways as a sum of consecutive naturals, for example, 390819 + ... + 391034.

It is an arithmetic number, because the mean of its divisors is an integer number (9121630).

Almost surely, 2^84440124 is an apocalyptic number.

It is an amenable number.

84440124 is an abundant number, since it is smaller than the sum of its proper divisors (134478996).

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

84440124 is a wasteful number, since it uses less digits than its factorization.

84440124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781866 (or 781858 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 84440124 is about 9189.1307532323. The cubic root of 84440124 is about 438.7154754045.

The spelling of 84440124 in words is "eighty-four million, four hundred forty thousand, one hundred twenty-four".