84405142 has 8 divisors (see below), whose sum is σ = 129695832. Its totient is φ = 41173200.

The previous prime is 84405127. The next prime is 84405199. The reversal of 84405142 is 24150448.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 84405142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514584 + ... + 514747.

It is an arithmetic number, because the mean of its divisors is an integer number (16211979).

Almost surely, 2^84405142 is an apocalyptic number.

84405142 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

84405142 is a deficient number, since it is larger than the sum of its proper divisors (45290690).

84405142 is a wasteful number, since it uses less digits than its factorization.

84405142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029374.

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 84405142 is about 9187.2271115936. The cubic root of 84405142 is about 438.6548831021.

The spelling of 84405142 in words is "eighty-four million, four hundred five thousand, one hundred forty-two".