84074042 has 8 divisors (see below), whose sum is σ = 135811956. Its totient is φ = 38803392.

The previous prime is 84074033. The next prime is 84074047. The reversal of 84074042 is 24047048.

It can be written as a sum of positive squares in 2 ways, for example, as 84070561 + 3481 = 9169^2 + 59^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 84073996 and 84074014.

It is not an unprimeable number, because it can be changed into a prime (84074047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1616783 + ... + 1616834.

Almost surely, 2^84074042 is an apocalyptic number.

84074042 is a deficient number, since it is larger than the sum of its proper divisors (51737914).

84074042 is a wasteful number, since it uses less digits than its factorization.

84074042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233632.

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 84074042 is about 9169.1898224434. The cubic root of 84074042 is about 438.0805541186.

The spelling of 84074042 in words is "eighty-four million, seventy-four thousand, forty-two".